Box with chamfered corners
By designing boxes with chamfered corners and employing specific flap structures and angle designs, the stability issues of boxes during stacking and storage were resolved, enabling more efficient folding and standing processes, reducing material usage and manual operation requirements, and improving production efficiency and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-06-28
- Publication Date
- 2026-04-03
AI Technical Summary
Existing boxes are prone to deformation or collapse during stacking and storage, and the manufacturing process requires a lot of manual labor, especially for large boxes, where material costs and weight become bottlenecks.
Design a box with two beveled corners. Through a hinged lid design with specific angles and structure, ensure the stability and integrity of the box in an upright and closed state. It is formed using foldable sheet material to simplify the folding and erection process.
It improves the stability and sealing integrity of the box, reduces material usage, simplifies the folding and standing process, reduces manual operations, and improves production efficiency and cost-effectiveness.
Smart Images

Figure CN115916651B_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a box having two chamfered corners. Background Technology
[0002] Boxes are widely used for packaging all kinds of products, especially for packaging and storing personal hygiene absorbent products such as diapers, underwear, or feminine hygiene products. Boxes containing absorbent products are typically formed from foldable sheet material (usually cardboard) that can be converted into a box. Boxes can be relatively small and hold individual, unbundled absorbent products, such as sanitary napkins or panty liners. Alternatively, boxes can be larger, holding, for example, two, three, or more bundles of absorbent products (such as diapers or underwear), with each bundle contained within a flexible package, thus the box holds several such flexible packages, each filled with multiple absorbent products.
[0003] For storage and transportation, boxes are typically stacked and piled on top of each other. To achieve this, the boxes must be stable enough to withstand deformation, and in the worst-case scenario, even collapse while stacked. On the other hand, due to cost and weight considerations, the materials used to manufacture the boxes (usually cardboard or corrugated cardboard) need to be as thin as possible.
[0004] Furthermore, especially for larger boxes, such as those filled with several flexible packs, each containing multiple absorbent articles, a certain amount of manual work is still required (i.e., not done by machines). Therefore, there is a need for a box that can be easily, quickly, and accurately folded and erected from continuous blanks of foldable sheet material. Summary of the Invention
[0005] The present invention provides a box with two chamfered edges. The box includes a front panel and a rear panel, a first side panel and a second side panel, as well as a first corner panel and a second corner panel.
[0006] The first corner panel is adjacent to the front panel and the first side panel, and extends between the front panel and the first side panel. The second corner panel is adjacent to the rear panel and the second side panel, and extends between the rear panel and the second side panel.
[0007] The first upper main flap is hinged to the front panel along the first upper fold line, and the second upper main flap is hinged to the rear panel along the second upper fold line. The first upper auxiliary flap is hinged to the first side panel along the third upper fold line, and the second upper auxiliary flap is hinged to the second side panel along the fourth upper fold line. The first and second upper main flaps, as well as the first and second upper auxiliary flaps, combine to form the top panel of the case.
[0008] The first lower main flap is hinged to the front panel along the first lower fold line, and the second lower main flap is hinged to the rear panel along the second lower fold line. The first lower auxiliary flap is hinged to the first side panel along the third lower fold line, and the second lower auxiliary flap is hinged to the second side panel along the fourth lower fold line. The first and second lower main flaps, as well as the first and second lower auxiliary flaps, together form the bottom panel of the case.
[0009] The first upper secondary flap includes a first side edge and a second side edge. When the top panel of the box is closed, the first side edge is overlapped by the first upper main flap, and when the top panel of the box is closed, the second side edge is overlapped by the second upper main flap.
[0010] The first side edge of the first upper auxiliary flap includes a first segment and a second segment. The first segment is positioned between the third upper fold line and the second segment.
[0011] In the first upper secondary flap, a first angle (α1) is formed between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably 135° between the third upper fold line and the first segment of the first side edge.
[0012] When the case is in its upright closed configuration, the first segment of the first upper secondary flap abuts against the first corner panel, and when the case is in its upright closed configuration, the second segment of the first upper secondary flap abuts against the first upper fold line.
[0013] The second upper auxiliary flap includes a first side edge and a second side edge. When the top panel of the box is closed, the first side edge is overlapped by the second upper main flap, and when the top panel of the box is closed, the second side edge is overlapped by the first upper main flap.
[0014] The first side edge of the second upper auxiliary flap includes a first segment and a second segment. The first segment is positioned between the fourth upper fold line and the second segment.
[0015] In the second upper sub-cover, a second angle (α2) is formed between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably 135°, between the fourth upper fold line and the first segment of the first side edge.
[0016] When the box is in its upright closed configuration, the first segment of the second upper auxiliary flap abuts against the second corner panel, and when the box is in its upright closed configuration, the second segment of the second upper auxiliary flap abuts against the second upper fold line.
[0017] The first upper main flap includes a first side edge and a second side edge. When the case is closed, the first side edge overlaps with the second upper auxiliary flap, and when the case is closed, the second side edge overlaps with the first upper auxiliary flap. The first upper main flap also includes an end edge extending between the first side edge and the second side edge.
[0018] The second side edge of the first upper main flap includes a first segment and a second segment. The first segment is positioned between the first upper fold line and the second segment.
[0019] In the first upper main flap, a third angle (α3) is formed between the first upper fold line and the first segment of the second side edge, at an angle between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably 135°. When the box is in its upright closed configuration, the first segment of the first upper main flap abuts against the first corner panel.
[0020] The second upper main flap includes a first side edge and a second side edge. When the case is closed, the first side edge overlaps with the first upper auxiliary flap, and when the case is closed, the second side edge overlaps with the second upper auxiliary flap. The second upper main flap also includes an end edge extending between the first side edge and the second side edge.
[0021] The second side edge of the second upper main flap includes a first segment and a second segment. The first segment is positioned between the second upper fold line and the second segment.
[0022] In the second upper main flap, a fourth angle (α4) is formed between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably 135°, between the second upper fold line and the first segment of the second side edge.
[0023] When the box is in its upright, closed configuration, the first section of the second upper main flap abuts against the second corner panel.
[0024] The sum of the first angle (α1) and the third angle (α3) is between 240° and 300°, preferably between 260° and 280°, more preferably 270°, and the sum of the second angle (α2) and the fourth angle (α4) is between 240° and 300°, preferably between 260° and 280°, more preferably 270°.
[0025] In this case, a corner is formed where the second side edge of the first upper main flap coincides with the end edge of the first upper main flap. When the case is in its upright, closed configuration, this corner also coincides with the first side edge of the second upper main flap.
[0026] In this case, a corner is formed where the first side edge of the first upper main flap coincides with the end edge of the first upper main flap. When the case is in its upright, closed configuration, this corner is located on the top panel and is spaced at least 10 mm inward from the fourth upper fold line.
[0027] Furthermore, in this case, a corner is formed where the first side edge of the second upper main flap coincides with the end edge of the second upper main flap. When the case is in its upright, closed configuration, this corner is located on the top panel and is spaced inwards at least 10 mm from the third upper fold line.
[0028] In this case, a corner may be formed at the location where the second side edge of the first upper main flap coincides with the end edge of the first upper main flap. When the case is in its upright, closed configuration, this corner may also coincide with the corner formed at the location where the first side edge of the second upper main flap coincides with the end edge of the second upper main flap.
[0029] In this case, an additional corner can be formed at the location where the second side edge of the second upper main flap and the end edge of the second upper main flap coincide. When the case is in its upright, closed configuration, this corner can also coincide with the corner formed at the location where the first side edge of the first upper main flap and the end edge of the first upper main flap coincide.
[0030] Similarly, the first side edge of the second upper main flap may include a third segment and a fourth segment. The third segment may be positioned between the second upper fold line and the fourth segment. The third segment may be perpendicular to the second upper fold line. The fourth segment may transition such that when the box is in its upright closed configuration, the corner where the first side edge and the end edge coincide coincides with the second segment of the first side edge of the first upper main flap.
[0031] In this configuration, the top main flap cannot be easily folded or damaged when the case is closed, thus contributing to the integrity of the closed case. Moreover, this configuration provides a case with a higher quality appearance. Attached Figure Description
[0032] Figure 1 An embodiment of the box of the present invention is shown in its unfolded and non-erect configuration (i.e., as a continuous blank of foldable sheet material that can be transformed into a box).
[0033] Figure 2 The image shows a closed configuration, sealed with tape, in its upright position. Figure 1 The box.
[0034] Figure 3 The top panel is partially open. Figure 2 The box.
[0035] Figure 4 It shows further opening Figure 2 and Figure 3 The box, namely, the first upper main flap and the second upper main flap fold outwards, while the first upper auxiliary flap and the second upper auxiliary flap do not fold outwards.
[0036] Figure 5 The top panel is shown to be fully open. Figures 2 to 4 The box.
[0037] Figure 6 It shows the ratio Figure 2 The tape shown is longer and seals the area in a closed configuration. Figure 2 The box.
[0038] Figure 7 It shows having with Figure 1 The different cut segments shown are designed to allow for gripping of the box.
[0039] Figure 8 The image shows a closed configuration, sealed with tape, in its upright position. Figure 7 The box. Detailed Implementation
[0040] A box with two chamfered edges is provided. Figure 1 and Figure 7 An exemplary box in its unfolded and non-erect configuration is shown. Figures 2 to 6 and Figure 8 The box shown is in its upright configuration, or closed ( Figure 2 , Figure 6 and Figure 7 ), or the top panel can be partially or fully opened ( Figures 3 to 5 The box 20 includes a front panel 2 and a rear panel 22, a first side panel 23 and a second side panel 24, and a first corner panel 25 and a second corner panel 26. The first corner panel 25 is adjacent to the front panel 21 and the first side panel 23, and extends between the front panel 21 and the first side panel 23. The second corner panel 26 is adjacent to the rear panel 22 and the second side panel 24, and extends between the rear panel 22 and the second side panel. The box may have only two corner panels (i.e., the first corner panel and the second corner panel). Therefore, for the other two corners of the box, the first side panel may be directly adjacent to the rear panel, and the second side panel may be directly adjacent to the front panel.
[0041] The case also includes a first upper main flap 28 and a second upper main flap 29. The first upper main flap is hinged to the front panel 21 along a first upper fold line 42, and the second upper main flap is hinged to the rear panel 22 along a second upper fold line 43. A first upper auxiliary flap 30 is hinged to the first side panel 23 along a third upper fold line 44, and a second upper auxiliary flap 31 is hinged to the second side panel 24 along a fourth upper fold line. The first upper main flap 28 and the second upper main flap 29, as well as the first upper auxiliary flap 30 and the second upper auxiliary flap 31, combine to form the top panel of the case.
[0042] The first lower main flap 32 is hinged to the front panel 21 along the first lower fold line 46, and the second lower main flap 29 is hinged to the rear panel 22 along the second lower fold line 47. The first lower auxiliary flap 30 is hinged to the first side panel 23 along the third lower fold line 48, and the second lower auxiliary flap 31 is hinged to the second side panel 24 along the fourth lower fold line 49. The first lower main flap 28 and the second lower main flap 29, as well as the first lower auxiliary flap 30 and the second lower auxiliary flap 31, together form the bottom panel of the case. For the avoidance of doubt, the terms top panel and bottom panel as used herein are not intended to be restrictive in the sense that the case can also be used upside down, i.e., when the case is placed, for example, on a table, the top panel is the panel that is in direct contact with the table.
[0043] The first upper auxiliary flap 30 includes a first side edge 52 and a second side edge 53. When the top panel of the box is closed, the first side edge 52 is overlapped by the first upper main flap 28, and when the top panel of the box is closed, the second side edge 53 is overlapped by the second upper main flap 29.
[0044] The first side edge 52 of the first upper auxiliary flap 30 includes a first segment 54 and a second segment 55. The first segment 54 is disposed between the third upper fold line 44 and the second segment 55. The first segment is preferably a straight line. The second segment is preferably a straight line.
[0045] In the first upper secondary flap 30, a first angle (α1) is formed between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably between 135° (as shown in the figure) between the third upper fold line 44 and the first segment 54 of the first side edge 52. Figure 1 (As shown).
[0046] When the box is in its upright closed configuration, the first segment 54 of the first upper auxiliary flap 30 abuts against the first corner panel 25, and when the box is in its upright closed configuration, the second segment 55 of the first upper auxiliary flap 30 abuts against the first upper fold line 42.
[0047] The second upper auxiliary flap 31 includes a first side edge 56 and a second side edge 57. When the top panel of the box is closed, the first side edge 56 is overlapped by the second upper main flap 29, and when the top panel of the box is closed, the second side edge 57 is overlapped by the first upper main flap 28.
[0048] The first side edge 56 of the second upper auxiliary flap 31 includes a first segment 58 and a second segment 59. The first segment 58 is disposed between the fourth upper fold line 45 and the second segment 59. The first segment is preferably a straight line. The second segment is preferably a straight line.
[0049] In the second upper auxiliary flap 31, a second angle (α2) is formed between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably between 135° (as shown in the image) between the fourth upper fold line 45 and the first segment 58 of the first side edge 56. Figure 1 (As shown).
[0050] When the box is in its upright closed configuration, the first segment 58 of the second upper auxiliary flap 31 abuts against the second corner panel 26, and when the box is in its upright closed configuration, the second segment 59 of the second upper auxiliary flap 31 abuts against the second upper fold line 43.
[0051] When the case is in its upright, closed configuration, the first segment 54 of the first upper auxiliary flap 30 abuts against the first corner panel 25, and the second segment 55 of the first upper auxiliary flap 30 abuts against the first upper fold line 42. Furthermore, when the case is in its upright, closed configuration, the first segment 58 of the second upper auxiliary flap 31 abuts against the second corner panel 26, and the second segment 59 of the second upper auxiliary flap 31 abuts against the second upper fold line 43. This provides a case with good stability. Therefore, since the positions of the front and rear panels, side panels, and corner panels relative to each other cannot be easily shifted, the shape of the case cannot be easily deformed. This is achieved without providing any additional flaps to the top panel that require folding and handling, except for the main flaps and auxiliary flaps.
[0052] The first upper main flap 28 includes a first side edge 60 and a second side edge 61. When the top panel of the case is closed, the first side edge 60 overlaps with the second upper auxiliary flap 31, and when the top panel of the case is closed, the second side edge 61 overlaps with the first upper auxiliary flap 30. The first upper main flap 28 also includes an end edge 85 extending between the first side edge 60 and the second side edge 61.
[0053] The second side edge 61 of the first upper main flap 28 includes a first segment 62 and a second segment 63. The first segment 62 is disposed between the first upper fold line 42 and the second segment 63. The first segment is preferably a straight line.
[0054] In the first upper main flap 28, a third angle (α3) is formed between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably between 135° (as shown in the figure) between the first upper fold line 42 and the first segment 62 of the second side edge 61. Figure 1 (As shown).
[0055] When the box is in its upright, closed configuration, the first segment 62 of the first upper main flap 28 abuts against the first corner panel 25.
[0056] The second upper main flap 29 includes a first side edge 64 and a second side edge 65. When the top panel of the case is closed, the first side edge 64 overlaps with the first upper auxiliary flap 30, and when the top panel of the case is closed, the second side edge 65 overlaps with the second upper auxiliary flap 31. The second upper main flap 29 also includes an end edge 86 extending between the first side edge 64 and the second side edge 65.
[0057] The second side edge 65 of the second upper main flap 29 includes a first segment 66 and a second segment 67. The first segment 66 is disposed between the second upper fold line 43 and the second segment 67. The second segment is preferably a straight line.
[0058] In the second upper main flap 29, a fourth angle (α4) is formed between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably between 135° (as shown in the image) between the second upper fold line 43 and the first segment 65 of the second side edge 65. Figure 1 (As shown).
[0059] When the box is in its upright, closed configuration, the first segment 66 of the second upper main flap 29 abuts against the second corner panel 26.
[0060] When the case is in its upright, closed configuration, the first segment 62 of the first upper main flap 28 abuts against the first corner panel 25, and the first segment 66 of the second upper main flap 29 abuts against the second corner panel 26, providing a stable case, that is, preventing the front and rear panels, side panels and corner panels from shifting relative to each other.
[0061] The sum of the first angle (α1) and the third angle (α3) is between 240° and 300°, preferably between 250° and 290°, more preferably between 260° and 280°, and even more preferably 270°, and the sum of the second angle (α2) and the fourth angle (α4) is between 240° and 300°, preferably between 250° and 290°, more preferably between 260° and 280°, and even more preferably 270°.
[0062] As shown in the figure, in this case, a corner is formed at the position where the first side edge 60 of the first upper main flap 28 coincides with the end edge 85 of the first upper main flap 28. When the case is in its upright closed configuration, this corner is located on the top panel and is spaced at least 10 mm inward from the fourth upper fold line 45.
[0063] Furthermore, in this case, a corner is formed where the first side edge 64 of the second upper main flap 29 coincides with the end edge 86 of the second upper main flap 29. When the case is in its upright, closed configuration, this corner is located on the top panel and is spaced inward from the third upper fold line 44 by at least 10 mm, at least 15 mm, or at least 20 mm. The corner may not be spaced inward from the third upper fold line 44 by more than 80 mm, more than 70 mm, or more than 60 mm.
[0064] Therefore, the first side edge of the first upper main flap, the first side edge of the second upper main flap, and the corner formed as described in the previous two paragraphs cannot be easily folded onto the third and fourth upper fold lines respectively, thus protecting the upper main flaps from damage when the case is closed, thereby contributing to the integrity of the closed case. Moreover, this configuration provides a case with a higher quality appearance. If the inward spacing becomes too large, such as greater than 80mm, the overall stability of the case may be compromised because the relatively large areas of the first and second upper auxiliary flaps are not overlapped and covered by the first and second upper main flaps.
[0065] In this case, a corner can be formed at the location where the second side edge 61 of the first upper main flap 28 and the end edge 85 of the first upper main flap 28 coincide. When the case is in its upright closed configuration, this corner can also coincide with the corner formed at the location where the first side edge 64 of the second upper main flap 29 and the end edge 86 of the second upper main flap 29 coincide.
[0066] In this case, an additional corner can be formed at the location where the second side edge 65 of the second upper main flap 29 coincides with the end edge 86 of the second upper main flap 29. When the case is in its upright, closed configuration, this corner can also coincide with the corner formed at the location where the first side edge 60 of the first upper main flap 28 coincides with the end edge 85 of the first upper main flap 28.
[0067] This overlap of the corners further reduces the risk of damaging the side edges of the first and second upper main flaps. Furthermore, if the corners overlap, this provides a clear visual cue for correctly aligning the box, thus enabling a quick and reliable folding and sealing process (especially if the worker's task is to erect and seal the box), driving a consistent quality appearance, and reducing the risk of incorrectly constructed boxes having poor stability.
[0068] The first side edge 60 of the first upper main flap 28 may include a third segment 80 and a fourth segment 81. The third segment 80 may be disposed between the first upper fold line 42 and the fourth segment 81. The third segment 80 may be perpendicular to the first upper fold line 42. The fourth segment 81 may transition such that when the box is in its upright closed configuration, the corner where the first side edge 60 and the end edge 85 coincide also coincides with the second segment 67 of the second side edge 65 of the second upper main flap 29.
[0069] Similarly, the first side edge 64 of the second upper main flap 29 may include a third segment 82 and a fourth segment 83. The third segment 82 may be positioned between the second upper fold line 43 and the fourth segment 83. The third segment 82 may be perpendicular to the second upper fold line 43. The fourth segment 83 may transition such that when the box is in its upright closed configuration, the corner where the first side edge 64 and the end edge 86 coincide also coincides with the second segment 63 of the first side edge 60 of the first upper main flap 28.
[0070] like Figure 5 As shown, in this box, when the box is in its upright configuration, a fifth angle (α5) can be formed between the first side panel 23 and the first corner panel 25. The fifth angle (α5) is determined inside the box, specifically between the surfaces of the first side panel 23 and the first corner panel 25 facing the upright interior of the box. The fifth angle (α5) is equal to the first angle (α1). Furthermore, when the box is in its upright configuration, a sixth angle (α6) is formed between the front panel 21 and the first corner panel 25. The sixth angle (α6) is also determined inside the box, specifically between the surfaces of the front panel 21 and the first corner panel 25 facing the upright interior of the box. The sixth angle (α6) is equal to the third angle (α3).
[0071] Furthermore, when the box is in its upright configuration, a seventh angle (α7) is formed between the second side panel 24 and the second corner panel 26. The seventh angle (α7) is determined inside the box, specifically between the surfaces of the second side panel 24 and the second corner panel 26 facing the upright interior of the box. The seventh angle (α7) is equal to the second angle (α2). When the box is in its upright configuration, an eighth angle (α8) is formed between the rear panel 22 and the second corner panel 26. The eighth angle (α8) is determined inside the box, specifically between the surfaces of the rear panel 22 and the second corner panel 26 facing the upright interior of the box. The eighth angle (α8) is equal to the fourth angle (α4).
[0072] Therefore, when each of the first, second, third, and fourth angles is 135°, the front panel and the first corner panel, the first side panel and the first corner panel, the rear panel and the first and second corner panels, and the second side panel and the second corner panel each form a 45° angle with each other (measured inside the upright box). Meanwhile, if measured inside the upright box, the front panel and the second side panel, as well as the rear panel and the first side panel, can each form a right angle (i.e., 90°) with each other.
[0073] The second segment 55 of the first upper auxiliary flap 30 can be set perpendicular to the third upper fold line 44, and the second segment 59 of the second upper auxiliary flap 31 can be set perpendicular to the fourth upper fold line 45. Similarly, the second segment 63 of the first upper main flap 28 can be set perpendicular to the first upper fold line 42, and the second segment 67 of the second upper main flap 29 can be set perpendicular to the second upper fold line 43.
[0074] When the box is in its upright configuration, the front panel 21 and the rear panel 22 of the box can be parallel to each other. When the box is in its upright configuration, the first side panel 23 and the second side panel 24 can be parallel to each other. When the box is in its upright configuration, the first corner panel 25 and the second corner panel 26 can be parallel to each other.
[0075] The front panel 21 and the rear panel 22 may be wider than the first side panel 23 and the second side panel 24. The first side panel 23 and the second side panel 24 may be wider than the first corner panel 25 and the second corner panel. The width of the front panel extends parallel to the first upper fold line, and the width of the rear panel extends parallel to the second upper fold line. The width of the first side panel extends parallel to the third upper fold line, and the width of the second side panel extends parallel to the fourth upper fold line. The width of the first corner panel extends along the shortest path from the front panel to the first side panel, and the width of the second corner panel extends along the shortest path from the rear panel to the second side panel.
[0076] The width of the front panel can be the same as the width of the rear panel, the width of the first side panel can be the same as the width of the second side panel, and the width of the first corner panel can be the same as the width of the second corner panel.
[0077] The width of the front panel and the rear panel may be at least 1.3 times, or at least 1.5 times, or at least 1.8 times, or at least 2 times the width of the first side panel and the second side panel. The width of the first side panel and the second side panel may be at least 2 times, or at least 3 times, or at least 4 times the width of the first corner panel and the second corner panel.
[0078] The height (perpendicular to the width extension) of the front panel and rear panel, the first side panel and the second side panel, and the first corner panel and the second corner panel can be the same.
[0079] The box can be formed from a continuous blank of foldable sheet material. The foldable sheet material can be cardboard or corrugated cardboard. For larger boxes, corrugated cardboard may be preferred because it provides a more stable material. Generally speaking, it has been found that the stability of a box can be improved due to its two chamfered corners compared to a box with four rectangular corners; that is, the box is more resistant to deformation or even collapse when multiple boxes are stacked on top of each other. Obviously, the absolute basis weight of cardboard or corrugated cardboard will depend on the size of the box and the weight of its contents; however, it has been found that, assuming the size of the box and the contents are the same, the box of the present invention can use a lower basis weight foldable sheet material compared to a rectangular box due to the chamfered corners. Therefore, the box of the present invention is relatively cost-effective and sustainable (requiring thinner, i.e., less foldable sheet material overall). The box may also include overlapping panels 27. The overlapping panels can be arranged in any way within or between the front and rear panels, the first and second side panels, or the first and second corner panels. Preferably, the overlapping panel 27 may be adjacent to the first side panel 23 and at least partially overlap with and be attached to the first corner panel 25, or the overlapping panel 27 may be adjacent to the second side panel 24 and at least partially overlap with and be attached to the second corner panel 26.
[0080] By placing overlapping panels in this location, the stability of the corner panels with overlapping panels can be improved. The top panel of the box can be sealed, for example, by applying tape 200 to the top panel. Figure 2 and Figure 6 exemplified. like Figure 6 As shown, tape 200 can extend from the first side panel 23 along the end edges 85, 86 of the first upper main flap 28 and the second upper main flap 29 and toward the second side panel 24 at these end edges. If tape 200 extends beyond the top panel, across the third upper fold line 44 and the fourth upper fold line 45 to reach the first side panel 23 and the second side panel 24, force is generally applied to the first side panel 23 and the second side panel 24 to attach tape 200 to these panels, which presses the first side panel 23 and the second side panel 24 toward the interior of the case. If the overlapping panel 27 faces inward (i.e., toward the interior of the case) and the corner panel faces outward, the risk of possible deformation can be reduced. Thus, when force (via the side panels) is applied to the corner panel when tape is applied, the corner panel is supported by the overlapping panel.
[0081] As an alternative to using tape, the top panel of the case can also be sealed by applying adhesive (i.e., adhesive not contained on the surface of the tape). For example, a hot-melt adhesive can be used. The adhesive can be applied between the first upper auxiliary flap 30 and the second upper auxiliary flap 31 and the first upper main flap 28 and the second upper main flap 29. When the case is in its upright, closed configuration, the first upper auxiliary flap and the second upper auxiliary flap can each have an outward-facing surface (i.e., a surface facing the outside of the case) and can each have a relatively inward-facing surface (i.e., a surface facing the inside of the case). Similarly, when the case is in its upright, closed configuration, the first upper main flap and the second upper main flap can each have an outward-facing surface (i.e., a surface facing the outside of the case) and can each have a relatively inward-facing surface (i.e., a surface facing the inside of the case). In the closed case, the outward-facing surfaces of the first upper auxiliary flap and the second upper auxiliary flap are in contact with the inward-facing surfaces of the first upper main flap and the second upper main flap. An adhesive (such as a hot melt adhesive) can be applied between the outward-facing surfaces of the first upper auxiliary flap and the second upper auxiliary flap and the inward-facing surfaces of the first upper main flap and the second upper main flap to seal the box. The adhesive, such as the hot melt adhesive, can be applied discontinuously.
[0082] For example, it may be partially (e.g., within up to 20 cm) between the first secondary flap and the first main flap, between the first secondary flap and the second main flap, between the second secondary flap and the first main flap, and between the second secondary flap and the second main flap. 2 Within the area (depending on the size of the box), a small amount of adhesive is applied. The adhesive (such as hot melt adhesive) can cover 2% to 20%, or 2% to 15%, or 2% to 10% of the area where the respective flaps overlap.
[0083] Such sealing with adhesives (such as hot melt adhesives) can provide a closed box that is not easily deformed. Assuming that the box of the present invention, with its two chamfered corners, is generally more prone to deformation, sealing it with an adhesive (such as a hot melt adhesive) can stabilize the box better than sealing it with tape using a mechanical tape applicator, which often applies considerable force to the box during the tape application process. However, the stability of the box also depends on its overall size and the articles contained within.
[0084] The end edges 85, 86 of the first upper main flap 28 and the second upper main flap 29 may have a wavy shape (not shown). The end edge 85 of the first upper main flap 28 may have a first wavy shape, and the end edge 86 of the second upper main flap 29 may have a second wavy shape complementary to the first wavy shape, such that the first wavy shape engages with the second wavy shape when the case is in its upright, closed configuration. Since the first and second upper main flaps are interlocked, i.e., they cannot shift relative to each other even if they are not attached to each other, for example, by tape, these engaged wavy edges help to improve the stability of the closed case.
[0085] The upright box may also include a first vertical fold line 36 that hinges the front panel 21 to the first corner panel 25, a second vertical fold line 37 that hinges the front panel 21 to the second side panel 24, a third vertical fold line 38 that hinges the rear panel 22 to the second corner panel 26, a fourth vertical fold line 39 that hinges the rear panel 22 to the first side panel 23, a fifth vertical fold line 40 that hinges the first side panel to the first corner panel 44 or overlapping panel 27, and a sixth vertical fold line 41 that hinges the second side panel 24 to the second corner panel 26 or overlapping panel 27. The box can be flattened such that it folds only along the second vertical fold line 27 and the fourth vertical fold line 39, and all other fold lines are in their fully unfolded configuration.
[0086] Therefore, by providing the box of the present invention with two chamfered corners, it is possible to fold the box so that it is completely flat, which offers a significant advantage over, for example, a box with four chamfered corners, which can be laid completely flat by pre-bending a vertical fold line on one side edge of the corner panel by 180° while fully folding the vertical fold line on the corresponding other side edge of the corner panel. Such asymmetrical pre-bending in the flat configuration applies to two of the corner panels (while the other two corner panels in a box with four chamfered corners are positioned in the flattened plane). Asymmetrical pre-bending tends to lead to asymmetry during the erection process and thus results in a box that cannot be erected correctly in a quick manner. Typically, the box can be manufactured in one location by attaching an overlapping panel adjacent to the first side panel 23 and at least partially overlapping and attaching it to the first corner panel 25, or by attaching an overlapping panel 27 adjacent to the second side panel 24 and at least partially overlapping and attaching it to the second corner panel 26. These pre-manufactured and assembled boxes (i.e., with overlapping panels attached) can be transported to another location where they are filled with items, such as absorbent materials. It is highly desirable to be able to store and transport these pre-manufactured and assembled boxes in a completely flat configuration. Furthermore, such boxes can be easily and quickly erected.
[0087] In the above embodiment, when the box is in its flat folded configuration, the first corner panel 25 and the second corner panel 26 are located in the plane of the folded box, that is, the first corner panel and the second corner panel do not participate in the folding, the folding is along the second vertical fold line 37 and the fourth vertical fold line 39, and all other fold lines are in their fully unfolded configuration. It is desirable to provide overlapping panels 27 so that they can be attached to either the first corner panel 25 or the second corner panel 26. Therefore, similar to the first and second corner panels, the area where overlapping panels are provided is also in the plane of the folded box. It is advantageous not to have overlapping panels directly adjacent to the vertical fold lines that fold when the box is unfolded, as this simplifies the folding and also improves the stacking of folded boxes on top of each other.
[0088] In this case, the first side edge 52 of the first upper auxiliary flap 30 may include a third segment 70 adjacent to the second segment 55. The third segment 70 may be configured to form an angle of less than 180° but greater than 90° with the second segment 55. Therefore, when the case is in its upright closed configuration, the third segment 70 does not abut against the first upper fold line 42.
[0089] The first side edge 56 of the second upper auxiliary flap 31 may include a third segment 71 adjacent to the second segment 59. The third segment 71 may be configured to form an angle of less than 180° but greater than 90° with the second segment 59. Therefore, when the box is in its upright closed configuration, the third segment 71 does not abut against the second upper fold line 43.
[0090] By ensuring that the third segments 70 and 71 of the first side edges 52 and 56 of the first and second upper auxiliary flaps 30 and 31 do not abut against the first and second upper fold lines respectively, the auxiliary flaps are easier to fold downwards. This is due to the reduced friction between the first side edges 52 and 56 and the surfaces of the first and second upper fold lines. Moreover, when folding and standing the box from its flat configuration, the box of the present invention is less sensitive to slight misalignment (wherein "flat configuration" here means that the overlapping panel has been attached to one of the first corner panel or the second corner panel).
[0091] The third segments 70, 71 of the first side edges 52, 56 of the first upper auxiliary flap 30 and the second upper auxiliary flap 31 can be straight or curved (preferably, they are not wavy). If they are curved, angles less than 180° and 90° are determined as tangents to the curve.
[0092] Depending on the overall shape and size of the box, the third segments 70 and 71 of the first side edges 52 and 56 of the first upper auxiliary flap 30 and the second upper auxiliary flap 31 may have the same length as, or a longer or shorter length than, the second segments 55 and 59 of the first side edges 52 and 56 of the first and second upper auxiliary flaps.
[0093] The second side edge 53 of the first upper auxiliary flap 30 may include a fourth segment 72 and a fifth segment 73. The fourth segment 72 may be disposed between the third upper fold line 44 and the fifth segment 73. When the case is in its upright closed configuration, the fourth segment 72 may abut against the second upper fold line 43. The fifth segment 73 may be disposed at an angle of less than 180° but greater than 90° to the fourth segment 72, such that when the case is in its upright closed configuration, the fifth segment 73 does not abut against the second upper fold line (43).
[0094] The second side edge 57 of the second upper auxiliary flap 31 may include a fourth segment 74 and a fifth segment 75. The fourth segment 74 may be disposed between the fourth upper fold line 45 and the fifth segment 75. When the case is in its upright closed configuration, the fourth segment 74 may abut against the first upper fold line 42. The fifth segment 75 may be disposed at an angle of less than 180° but greater than 90° to the fourth segment 74, such that when the case is in its upright closed configuration, the fifth segment 75 does not abut against the first upper fold line 42.
[0095] By having the fourth segments 72 and 74 of the first upper auxiliary flap 30 and the second upper auxiliary flap 31 abut against the second upper fold line 43 and the first upper fold line 42, respectively, the stability of the closed box is improved. Because the positions of the front and rear panels, side panels, and corner panels relative to each other cannot be easily shifted, the shape of the box cannot be easily deformed. This is achieved without providing any additional flaps to the top panel that require folding and handling, except for the main flaps and auxiliary flaps.
[0096] Overall, by providing stability to the box with only four flaps in each of the top and bottom panels (i.e., two main flaps and two secondary flaps), the box can be closed quickly and efficiently without the need to handle a large number of flaps and parts.
[0097] By ensuring that the fifth segments 73 and 75 of the second side edges 53 and 57 of the first upper auxiliary flap 30 and the second upper auxiliary flap 31 do not abut against the first upper fold line 42 and the second upper fold line 43, respectively, the auxiliary flaps are easier to fold downwards. This is due to the reduced friction between the second side edges 53 and 57 and the surfaces of the first and second upper fold lines. This configuration also makes the box less sensitive to misalignment during standing and folding.
[0098] The fifth segments 73, 75 of the second side edges 53, 57 of the first upper auxiliary flap 30 and the second upper auxiliary flap 31 can be straight or curved (preferably, they are not wavy). If they are curved, angles less than 180° and 90° are determined as tangents to the curve.
[0099] Depending on the overall shape and size of the box, the third segments 70 and 71 of the first side edges 52 and 56 of the first upper auxiliary flap 30 and the second upper auxiliary flap 31 may have the same length as, or a longer or shorter length than, the second segments 55 and 59 of the first side edges 52 and 56 of the first and second upper auxiliary flaps.
[0100] The fourth segment 72 of the second side edge 53 of the first upper auxiliary cover 30 may be perpendicular to the third upper fold line 44. The fourth segment 74 of the second side edge 57 of the second upper auxiliary cover 31 may be perpendicular to the fourth upper fold line 45.
[0101] When the container is in its closed configuration, the bottom panel can be completely closed, and the top panel can have a central opening window. In the opening window area, the upper main flaps 28, 29 and upper secondary flaps 30, 31 are not provided. This configuration can be achieved by having shorter upper main flaps and / or upper secondary flaps. Alternatively, when the container is in its closed configuration, the top panel can be completely closed, and the bottom panel can have a central opening window area. In the opening window area (if located in the top panel), the upper main flaps 28, 29 and upper secondary flaps 30, 31 are not provided. If the opening window area is located in the bottom panel, the lower main flaps 32, 33 and lower secondary flaps 34, 35 are not provided in that opening window area. As mentioned above, the terms "top panel" and "bottom panel" are not intended to limit the container to a certain orientation and position such that the container can also be placed on a supporting surface with its top panel.
[0102] Providing a case with a centrally located opening window area in the top and / or bottom panels allows for a reduction in the amount of material required. Furthermore, it can be advantageous if the contents of the case can be easily inspected (to some extent) without opening the case. The size of the opening window area ensures that items inside the case will not fall out due to their own movement, i.e., they cannot pass through the opening window area.
[0103] The box may have one or more (e.g., two) handles for easy transport. This is especially useful for relatively large boxes and / or boxes containing relatively heavy items.
[0104] The first handle 50 can be disposed in the second side panel, and the first handle 51 can be disposed in the first side panel, such as... Figures 1 to 6As illustrated, the handle can be provided as slit segments to allow gripping of the box by sliding one or more fingers of one hand through a first slit segment and one or more fingers of the other hand through a second slit segment. The slits are therefore ideally large enough to allow one or more fingers to slide through easily. The slit segments can be elongated in shape, with their larger dimensions positioned substantially parallel to the second upper fold line 43 and the fourth upper fold line 45, respectively. The slit segments can be positioned closer to the second upper fold line 43 and the fourth upper fold line 45, rather than closer to the second upper fold line 47 and the fourth upper fold line 49.
[0105] Alternatively, or otherwise, such as Figure 7 and Figure 8 As shown, a cutout segment 50 can be provided in the first side panel 23 and another cutout segment 51 can be provided in the rear panel 22. The two cutout segments can be adjacent to the fourth vertical fold line 39. The cutout segments can have rectangular, circular, or elliptical shapes. If the cutout segments have an elongated shape (i.e., neither square nor circular), their maximum diameter can be substantially parallel to the fourth vertical fold line. A person can slide one or more fingers of one hand through the two cutout segments, thereby grasping the box substantially around the corner formed at the fourth vertical fold line. By doing so, the box can be grasped and carried with only one hand. Moreover, by holding / carrying the box with one hand so that the box hangs downwards, one of the two chamfered corners will generally be positioned such that the chamfered corner (i.e., one of the rectangular corners that is not a rectangular corner) is close to and in contact with the body (such as the legs). Therefore, the box can be carried more conveniently. To facilitate easy gripping of the box by sliding one or more fingers of one hand through the two slit segments, the slit segments should be positioned at an appropriate distance from the fourth vertical fold line. For example, each slit segment should be 20mm to 40mm, or 25mm to 35mm, from the fourth vertical fold line. Placing the slit segments too close to the fourth vertical fold line may reduce the stability of the box, while placing them too far away may make it difficult to grip the box properly.
[0106] Alternatively, in addition to the slit segments provided in the first side panel 23 and rear panel 22, as described in the previous paragraphs, slit segments may be provided in the second side panel 24 and front panel 21. The two slit segments may be adjacent to the second vertical fold line 37. The slit segments may have a rectangular, circular, or elliptical shape. If the slit segments have an elongated shape (i.e., neither square nor circular), their maximum diameter may be substantially parallel to the fourth vertical fold line. To facilitate easy gripping of the box by sliding one or more fingers of a hand through the two slit segments, the slit segments should be positioned at an appropriate distance from the second vertical fold line. For example, each slit segment should be 20 mm to 40 mm, or 25 mm to 35 mm, from the second vertical fold line. Positioning the slit segments too close to the second vertical fold line may reduce the stability of the box, while positioning them too far from the second vertical fold line may make it difficult to grip the box properly.
[0107] Alternatively, or in addition to the above, the cut-out segments may also be provided in the top panel. For example, a cut-out segment may be provided adjacent to the end edge 85 of the first upper main flap 28, and another cut-out segment may be provided adjacent to the end edge 86 of the second upper main flap 29. Such cut-out segments may be provided at an intermediate position along the length of the end edges 85, 86 of the first main panel 28 and the second main panel 29, and the dimensions of the first upper sub-panel 30 and the second upper sub-panel 31 are set such that when the case is in its closed configuration, the first upper sub-panel and the second upper sub-panel do not overlap with the cut-out segments provided in the first upper main panel 28 and the second upper main panel 29.
[0108] Basically, the first lower auxiliary flap 34 and the second lower auxiliary flap 35, as well as the first lower main flap 32 and the second lower main flap 33 (which together form the bottom panel of the box), can have the same configuration as the flaps forming the top panel, which have already been described above. The benefits of the corresponding features for the bottom panel are basically the same as those for the top panel. In the following text, and as... Figure 1 As shown, the lower main flap and lower auxiliary flap can be constructed.
[0109] The first lower auxiliary flap 34 may include a first side edge 152 and a second side edge 153. When the bottom panel of the case is closed, the first side edge 152 may be overlapped by the first lower main flap 32. When the bottom panel of the case is closed, the second side edge 153 may be overlapped by the second lower main flap 33.
[0110] The first side edge 152 of the first lower auxiliary flap 34 may include a first segment 154 and a second segment 155. The first segment 154 may be disposed between the third lower fold line 48 and the second segment 155.
[0111] In the first lower secondary flap 34, a ninth angle (α9) can be formed between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably 135°, between the third lower fold line 48 and the first segment 154 of the first side edge 152. When the case is in its upright closed configuration, the first segment 154 of the first lower secondary flap 34 may abut the first corner panel 25. When the case is in its upright closed configuration, the second segment 155 of the first lower secondary flap 34 may abut the first lower fold line 46.
[0112] The second lower auxiliary flap 35 may include a first side edge 156 and a second side edge 157. When the bottom panel of the case is closed, the first side edge 156 may be overlapped by the second lower main flap 33. When the bottom panel of the case is closed, the second side edge 157 may be overlapped by the first lower main flap 32. The first side edge 156 of the second lower auxiliary flap 35 may include a first segment 158 and a second segment 159. The first segment 158 may be positioned between the fourth lower fold line 49 and the second segment 159.
[0113] In the second lower secondary flap 35, a tenth angle α10, between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably 135°, can be formed between the fourth lower fold line 49 and the first segment 158 of the first side edge 156. When the case is in its upright closed configuration, the first segment 158 of the second lower secondary flap 35 may abut the second corner panel 26. When the case is in its upright closed configuration, the second segment 159 of the second lower secondary flap 35 may abut the second lower fold line 47.
[0114] The first lower main flap 32 may include a first side edge 160 and a second side edge 161. When the case is closed, the first side edge 160 may overlap with the second lower auxiliary flap 35. When the case is closed, the second side edge 161 may overlap with the first lower auxiliary flap 34. The first lower main flap 32 may also include an end edge 185 extending between the first side edge 160 and the second side edge 161.
[0115] The second side edge 161 of the first lower main flap 32 may include a first segment 162 and a second segment 163. The first segment 162 may be disposed between the first lower fold line 46 and the second segment 163.
[0116] In the first lower main flap 32, an eleventh angle (α11) can be formed between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably 135°, between the first lower fold line 46 and the first segment 162 of the second side edge 161. When the box is in its upright closed configuration, the first segment 162 of the first lower main flap 32 can abut against the first corner panel 25.
[0117] The second lower main flap 33 may include a first side edge 164 and a second side edge 165. When the case is closed, the first side edge 164 may overlap with the first lower auxiliary flap 34, and when the case is closed, the second side edge 165 may overlap with the second lower auxiliary flap 35. The second lower main flap 33 may also include an end edge 188 extending between the first side edge 164 and the second side edge 165.
[0118] The second side edge 165 of the second lower main flap 33 may include a first segment 166 and a second segment 167. The first segment 166 may be disposed between the second lower fold line 47 and the second segment 167.
[0119] In the second lower main flap 33, a twelfth angle (α12) can be formed between the second lower fold line 47 and the first segment 165 of the second side edge 165, between 120° and 150°, preferably between 130° and 140°, more preferably between 134° and 136°, and even more preferably 135°. When the box is in its upright closed configuration, the first segment 166 of the second lower main flap 33 can abut against the second corner panel 26.
[0120] The sum of the ninth angle (α9) and the eleventh angle (α11) can be between 240° and 300°, preferably between 260° and 280°, more preferably 270°, and the sum of the tenth angle (α10) and the twelfth angle (α12) can be between 240° and 300°, preferably between 260° and 280°, more preferably 270°.
[0121] The end edge 185 of the first lower main flap 32 may have a first wavy shape, and the end edge 186 of the second lower main flap 33 may have a second wavy shape. The second wavy shape may complement the first wavy shape, such that when the box is in its upright closed configuration, the first wavy shape and the second wavy shape engage.
[0122] The second segment 155 of the first lower auxiliary flap 34 can be set perpendicular to the third lower fold line 48, and the second segment 159 of the second lower auxiliary flap 35 can be set perpendicular to the fourth lower fold line 49.
[0123] The second segment 163 of the first lower main flap 32 can be set perpendicular to the first lower fold line 46, and the second segment 167 of the second lower main flap 33 can be set perpendicular to the second lower fold line 47.
[0124] The first side edge 152 of the first lower auxiliary flap 34 may include a third segment 170 adjacent to its second segment 155. The third segment 170 may be configured at an angle of less than 180° but greater than 90° to the second segment 155, such that when the case is in its upright closed configuration, the third segment 170 does not abut against the first lower fold line 48. The first side edge 156 of the second lower auxiliary flap 35 may include a third segment 171 adjacent to its second segment 159. The third segment 171 may be configured at an angle of less than 180° but greater than 90° to the second segment 159, such that when the case is in its upright closed configuration, the third segment 171 does not abut against the second lower fold line 47.
[0125] The second side edge 153 of the first lower auxiliary flap 34 may include a fourth segment 172 and a fifth segment 173. The fourth segment 172 may be positioned between the third lower fold line 48 and the fifth segment 173. When the case is in its upright closed configuration, the fourth segment 172 may abut against the second lower fold line 47. The fifth segment 173 may be positioned at an angle less than 180° but greater than 90° to the fourth segment 172, such that when the case is in its upright closed configuration, the fifth segment 173 does not abut against the second lower fold line 47.
[0126] The second side edge 157 of the second lower auxiliary flap 35 may include a fourth segment 174 and a fifth segment 175. The fourth segment 174 may be disposed between the fourth lower fold line 49 and the fifth segment 175. When the case is in its upright closed configuration, the fourth segment 174 may abut against the first lower fold line 46. The fifth segment 175 may be disposed at an angle of less than 180° but greater than 90° to the fourth segment 174, such that when the case is in its upright closed configuration, the fifth segment 175 does not abut against the first lower fold line 46.
[0127] The fourth segment 172 of the second side edge 153 of the first lower auxiliary flap 34 may be perpendicular to the third lower fold line 48. The fourth segment 174 of the second side edge 157 of the second lower auxiliary flap 35 may be perpendicular to the fourth lower fold line 49.
[0128] The first lower main flap 32 may include an end edge 185 extending between a first side edge 160 and a second side edge 161, and may form a corner at the location where the second side edge 161 and the end edge 185 coincide. When the case is in its upright, closed configuration, this corner may also coincide with the first side edge 164 of the second lower main flap 33.
[0129] The second lower main flap 33 may include an end edge 186 extending between a first side edge 164 and a second side edge 165, and may form a corner at the location where the second side edge 165 and the end edge 186 coincide. When the box is in its upright, closed configuration, this corner may also coincide with the first side edge 160 of the first lower main flap 32.
[0130] The first side edge 160 of the first lower main flap 32 may include a third segment 180 and a fourth segment 181. The third segment 180 may be disposed between the first lower fold line 46 and the fourth segment 181. The third segment 180 may be perpendicular to the first lower fold line 46, and the fourth segment 181 may transition such that when the box is in its upright closed configuration, the corner where the first side edge 160 and the end edge 185 coincide may also coincide with the second segment 167 of the second side edge 165 of the second lower main flap 33.
[0131] The first side edge 164 of the second lower main flap 33 may include a third segment 182 and a fourth segment 183. The third segment 182 may be disposed between the second lower fold line 47 and the fourth segment 183. The third segment 182 may be perpendicular to the second lower fold line 47, and the fourth segment 183 may transition such that the corner where the first side edge 164 and the end edge 186 coincide may also coincide with the second segment 163 of the second side edge 161 of the first lower main flap 32.
[0132] The dimensions and values disclosed herein should not be construed as strictly limited to the precise numerical values cited. Rather, unless otherwise specified, each such dimension is intended to represent the stated value and a range around which it is functionally equivalent. For example, a dimension disclosed as “40 mm” is intended to represent “approximately 40 mm”.
[0133] Unless expressly excluded or otherwise limited, every reference cited herein, including any cross-references or related patents or applications, is incorporated herein by reference in its entirety. Reference to any reference is not an endorsement of its existence as prior art to any disclosed or protected art herein, nor is it an endorsement of any such invention, either on its own or in combination with any one or more references. Furthermore, where any meaning or definition of a term in this invention conflicts with any meaning or definition of the same term in referenced documents, the meaning or definition given to that term in this invention shall prevail.
[0134] While specific embodiments of the invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, it is intended that all such changes and modifications falling within the scope of the invention be covered in the appended claims.
Claims
1. A box (20) having two chamfered edges, the box comprising: Front panel (21) and rear panel (22); First side panel and second side panel (23, 24); First corner panel and second corner panel (25, 26). The first corner panel (25) is adjacent to the front panel (21) and the first side panel (23) and extends between the front panel (21) and the first side panel (23), and the second corner panel (26) is adjacent to the rear panel (22) and the second side panel (24) and extends between the rear panel (22) and the second side panel (24). The box also includes: A first upper main flap (28) and a second upper main flap, the first upper main flap being hinged to the front panel (21) along the first upper fold line (42), and the second upper main flap being hinged to the rear panel (22) along the second upper fold line (43). The first upper auxiliary flap and the second upper auxiliary flap are hinged together along the third upper fold line (44) to the first side panel (23), and the second upper auxiliary flap is hinged together along the fourth upper fold line (45) to the second side panel (24). The first upper main flap and the second upper main flap (28, 29) and the first upper auxiliary flap and the second upper auxiliary flap (30, 31) are combined to form the top panel of the box; A first lower main flap (32) and a second lower main flap, the first lower main flap being hinged to the front panel (21) along the first lower fold line (46), and the second lower main flap being hinged to the rear panel (22) along the second lower fold line (47). The first lower sub-hinged cover and the second lower sub-hinged cover are hinged to the first side panel (23) along the third lower fold line (48), and the second lower sub-hinged cover is hinged to the second side panel (24) along the fourth lower fold line (49). The first lower main flap, the second lower main flap, the first lower auxiliary flap, and the second lower auxiliary flap combine to form the bottom panel of the box. The first upper secondary flap includes a first side edge (52) and a second side edge (53). When the top panel of the box is closed, the first side edge (52) is overlapped by the first upper main flap (28), and when the top panel of the box is closed, the second side edge (53) is overlapped by the second upper main flap. The first side edge (52) of the first upper auxiliary flap includes a first segment (54) and a second segment (55), wherein the first segment (54) is disposed between the third upper fold line (44) and the second segment (55). In the first upper secondary flap, a first angle (α1) between 120° and 150° is formed between the third upper fold line (44) and the first segment (54) of the first side edge (52). When the box is in its upright closed configuration, the first segment (54) of the first upper secondary flap abuts against the first corner panel (25), and when the box is in its upright closed configuration, the second segment (55) of the first upper secondary flap abuts against the first upper fold line (42). The second upper secondary flap includes a first side edge (56) and a second side edge (57). When the top panel of the box is closed, the first side edge (56) is overlapped by the second upper main flap, and when the top panel of the box is closed, the second side edge (57) is overlapped by the first upper main flap (28). The first side edge (56) of the second upper auxiliary flap includes a first segment (58) and a second segment (59), wherein the first segment (58) is disposed between the fourth upper fold line (45) and the second segment (59). In the second upper sub-cover, a second angle (α2) between 120° and 150° is formed between the fourth upper fold line (45) and the first segment (58) of the first side edge (56). When the box is in its upright closed configuration, the first segment (58) of the second upper sub-hinged cover abuts against the second corner panel (26), and when the box is in its upright closed configuration, the second segment (59) of the second upper sub-hinged cover abuts against the second upper fold line (43). The first upper main flap (28) includes a first side edge (60) and a second side edge (61). When the top panel of the box is closed, the first side edge (60) overlaps with the second upper auxiliary flap, and when the top panel of the box is closed, the second side edge (61) overlaps with the first upper auxiliary flap. The first upper main flap (28) also includes an end edge (85) extending between the first side edge and the second side edge (60, 61). The second side edge (61) of the first upper main flap (28) includes a first segment (62) and a second segment (63), wherein the first segment (62) is disposed between the first upper fold line (42) and the second segment (63). In the first upper main flap (28), a third angle (α3) is formed between 120° and 150° between the first upper fold line (42) and the first segment (62) of the second side edge (61). When the box is in its upright closed configuration, the first segment (62) of the first upper main flap (28) abuts against the first corner panel (25). The second upper main flap includes a first side edge (64) and a second side edge (65). When the top panel of the box is closed, the first side edge (64) overlaps with the first upper secondary flap, and when the top panel of the box is closed, the second side edge (65) overlaps with the second upper secondary flap. The second upper main flap also includes an end edge (86) extending between the first side edge and the second side edge (64, 65). The second side edge (65) of the second upper main flap includes a first segment (66) and a second segment (67), wherein the first segment (66) is disposed between the second upper fold line (43) and the second segment (67). In the second upper main flap, a fourth angle (α4) between 120° and 150° is formed between the second upper fold line (43) and the first segment (65) of the second side edge (65). When the box is in its upright closed configuration, the first segment (66) of the second upper main flap abuts against the second corner panel (26). Wherein the sum of the first angle (α1) and the third angle (α3) is between 240° and 300°, and the sum of the second angle (α2) and the fourth angle (α4) is between 240° and 300°, and A corner is formed at the location where the first side edge (60) of the first upper main flap (28) coincides with the end edge (85) of the first upper main flap (28), wherein when the box is in its upright closed configuration, the corner is located on the top panel and is spaced inwardly from the fourth upper fold line (45) by at least 10 mm, and A corner is formed at the location where the first side edge (64) of the second upper main flap coincides with the end edge (86) of the second upper main flap, wherein when the box is in its upright closed configuration, the corner is located on the top panel and is spaced inwardly from the third upper fold line (44) by at least 10 mm. When the box is in its upright closed configuration, the first upper auxiliary flap and the second upper auxiliary flap each have an outward-facing surface and each have a relatively inward-facing surface. When the box is in its upright, closed configuration, the first upper main flap and the second upper main flap each have an outward-facing surface and an inward-facing surface respectively; in the closed box, the outward-facing surfaces of the first upper auxiliary flap and the second upper auxiliary flap are in contact with the inward-facing surfaces of the first upper main flap and the second upper main flap.
2. The case (20) according to claim 1, wherein a corner is formed at the location where the second side edge (61) of the first upper main flap (28) coincides with the end edge (85) of the first upper main flap (28), wherein when the case is in its upright closed configuration, the corner also coincides with the corner formed at the location where the first side edge (64) of the second upper main flap coincides with the end edge (86) of the second upper main flap; and A corner is formed at the position where the second side edge (65) of the second upper main flap coincides with the end edge (86) of the second upper main flap, wherein when the box is in its upright closed configuration, the corner also coincides with the corner formed at the position where the first side edge (60) of the first upper main flap (28) coincides with the end edge (85) of the first upper main flap (28).
3. The case (20) according to claim 1 or 2, wherein the first side edge (60) of the first upper main flap (28) comprises a third segment (80) and a fourth segment (81), the third segment (80) being disposed between the first upper fold line (42) and the fourth segment (81), wherein the third segment (80) is perpendicular to the first upper fold line (42), and the fourth segment (81) transitions such that, when the case is in its upright closed configuration, the corner at the location where the first side edge (60) and the end edge (85) coincide also coincides with the second segment (67) of the second side edge (65) of the second upper main flap; and The first side edge (64) of the second upper main flap includes a third segment (82) and a fourth segment (83). The third segment (82) is disposed between the second upper fold line (43) and the fourth segment (83). The third segment (82) is perpendicular to the second upper fold line (43), and the fourth segment (83) transitions such that when the box is in its upright closed configuration, the corner at the position where the first side edge (64) and the end edge (86) coincide also coincides with the second segment (63) of the second side edge (61) of the first upper main flap (28).
4. The box (20) according to claim 1 or 2, wherein the second segment (55) of the first upper secondary flap is disposed perpendicular to the third upper fold line (44), and the second segment (59) of the second upper secondary flap is disposed perpendicular to the fourth upper fold line (45).
5. The box (20) according to claim 1 or 2, wherein the second segment (63) of the first upper main flap (28) is disposed perpendicular to the first upper fold line (42), and the second segment (67) of the second upper main flap is disposed perpendicular to the second upper fold line (43).
6. The box (20) according to claim 1 or 2 further includes an overlapping panel (27) adjacent to the first side panel (23) and at least partially overlapping and attached to the first corner panel (25), or adjacent to the second side panel (24) and at least partially overlapping and attached to the second corner panel (26).
7. The box (20) according to claim 1 or 2, wherein the box is formed of cardboard or corrugated cardboard.
8. The case (20) according to claim 1 or 2, wherein the end edge (85) of the first upper main flap (28) has a first wavy shape, and the end edge (86) of the second upper main flap has a second wavy shape complementary to the first wavy shape, such that when the case is in its upright closed configuration, the first wavy shape and the second wavy shape interlock.
9. The box (20) according to claim 1 or 2, wherein when the box is in its upright configuration, a fifth angle (α5) is formed between the first side panel (23) and the first corner panel (25), wherein the fifth angle (α5) is equal to the first angle (α1), and wherein when the box is in its upright configuration, a sixth angle (α6) is formed between the front panel (21) and the first corner panel (25), wherein the sixth angle (α6) is equal to the third angle (α3), the fifth angle and the sixth angle (α5, α6) being measured inside the box.
10. The box (20) according to claim 1 or 2, wherein when the box is in its upright configuration, a seventh angle (α7) is formed between the second side panel (24) and the second corner panel (26), wherein the seventh angle (α7) is equal to the second angle (α2), and wherein when the box is in its upright configuration, an eighth angle (α8) is formed between the rear panel (22) and the second corner panel (26), wherein the eighth angle (α8) is equal to the fourth angle (α4), the seventh angle and the eighth angle being measured inside the box.
11. The box (20) according to claim 1 or 2, wherein the box further comprises: The first vertical fold line (36) connects the front panel (21) to the first corner panel (25) in a hinged manner. The second vertical fold line (37) connects the front panel (21) to the second side panel (24) in a hinged manner. The third vertical fold line (38) connects the rear panel (22) to the second corner panel (26) in a hinged manner. The fourth vertical fold line (39) connects the rear panel (22) to the first side panel (23) in a hinged manner. The fifth vertical fold line (40) connects the first side panel to the first corner panel (44) or to the overlapping panel (27) in a hinged manner. The sixth vertical fold line (41) connects the second side panel (24) to the second corner panel (26) or the overlapping panel (27) in a hinged manner. The box can be flattened such that it is folded only along the second and fourth vertical fold lines (37, 39), and all other fold lines are in their fully unfolded configuration.
12. The box (20) according to claim 11, wherein the overlapping panel (27) is attached to the first corner panel or the second corner panel (25, 26).
13. The case (20) according to claim 1 or 2, wherein the first side edge (52) of the first upper flap includes a third segment (70) adjacent to the second segment (55), the third segment (70) being configured at an angle of less than 180° but greater than 90° with respect to the second segment (55) such that when the case is in its upright closed configuration, the third segment (70) does not abut against the first upper fold line (42), and wherein the first side edge (56) of the second upper flap includes a third segment (71) adjacent to the second segment (59), the third segment (71) being configured at an angle of less than 180° but greater than 90° with respect to the second segment (59) such that when the case is in its upright closed configuration, the third segment (71) does not abut against the second upper fold line (43).
14. The case (20) according to claim 1 or 2, wherein the second side edge (53) of the first upper flap comprises a fourth segment (72) and a fifth segment (73), the fourth segment (72) being disposed between the third upper fold line (44) and the fifth segment (73), wherein when the case is in its upright closed configuration, the fourth segment (72) abuts against the second upper fold line (43); and wherein the fifth segment (73) is disposed at an angle less than 180° but greater than 90° to the fourth segment (72), such that when the case is in its upright closed configuration, the fifth segment (73) does not abut against the second upper fold line (43); and The second side edge (57) of the second upper auxiliary flap includes a fourth segment (74) and a fifth segment (75), the fourth segment (74) being disposed between the fourth upper fold line (45) and the fifth segment (75), wherein when the box is in its upright closed configuration, the fourth segment (74) abuts against the first upper fold line (42); and wherein the fifth segment (75) is configured to form an angle of less than 180° but greater than 90° with the fourth segment (74), such that when the box is in its upright closed configuration, the fifth segment (75) does not abut against the first upper fold line (42).
15. The box (20) according to claim 14, wherein the fourth segment (72) of the second side edge (53) of the first upper secondary flap is perpendicular to the third upper fold line (44), and wherein the fourth segment (74) of the second side edge (57) of the second upper secondary flap is perpendicular to the fourth upper fold line (45).
16. The box (20) according to claim 1 or 2, wherein when the box is in its upright closed configuration, the bottom panel of the box is completely closed, and the top panel has a central opening window area in which the upper main flap and upper secondary flap (28, 29, 30, 31) are not provided.
17. The box (20) according to claim 1 or 2, wherein the first upper secondary flap and the second upper secondary flap (30, 31) each have an outward-facing surface and an opposing inward-facing surface when the box is in its upright closed configuration, and the first upper main flap and the second upper main flap (28, 29) each have an outward-facing surface and an opposing inward-facing surface when the box is in its upright closed configuration, and wherein a hot melt adhesive is discontinuously applied between the outward-facing surfaces of the first upper secondary flap and the second upper secondary flap (30, 31) and the inward-facing surfaces of the first upper main flap and the second upper main flap (28, 29) to seal the box.
18. The box (20) according to claim 11, wherein: a) A cutout segment (50) is provided in the first side panel (23), and another cutout segment (51) is provided in the rear panel (22), each cutout segment being positioned adjacent to the fourth vertical fold line (39) such that one or more fingers of a hand can slide through the two cutout segments to grip the box around the corner formed at the fourth vertical fold line (39); and / or b) A cut-out segment is provided in the second side panel (24) and another cut-out segment is provided in the front panel (21), each cut-out segment being positioned adjacent to the second vertical fold line (37) so that one or more fingers of a hand can slide through the two cut-out segments to grip the box around the corner formed at the second vertical fold line (37).
Citation Information
Patent Citations
Carton with integral handle and package
CN105764807A
Magazine for feeding a horizontal loader of a machine processing sheet-like products, and its utilization method
EP0239507A1
Blanks and methods for forming containers having stacking platforms
US20160137333A1
Polygonal carton
US2967655A
Machine for producing polygonal cases
US5147271A