TW202229115A - Duodozen plus - Google Patents

Abstract

This invention relates to a carton and a blank thereof. A carton for packaging articles comprises a plurality of primary panels forming a tubular structure and an end closure structure for at least partially closing end parts of the tubular structure. The plurality of primary panels comprises a second panel and a fourth panel arranged opposite to each other. The end closure structure comprises second end closure panels and fourth end closure panels hingedly connected to the second panel and the fourth panel, respectively. The second end closure panel is overlaid on a part of outer surface of the fourth end closure panel. The fourth end closure panel has a concave corner cutout defined at least partly by a first edge complementary in shape to a corresponding part of the free end edge of the second end closure panel. Moreover, the second end closure panel and the fourth end closure panel are configured to make the first edge not covered by the second end closure panel.

Description

Cartons and their blanks

The present invention relates to cartons and blanks for forming cartons.

In the field of packaging, it is known to provide cartons for carrying a plurality of items. Cartons are well known in the art and enable consumers to transport, store and access items for consumption. For cost and environmental reasons, such a carton or carrier needs to be formed from as little material as possible so that as little material is wasted as possible to form the carton or carrier. A further consideration is the strength of the carton and its suitability in applications for holding and transporting heavy items. It is expected that the contents secured in the carton are safe.

The present invention aims to provide improvements in the field of cartons usually formed from paperboard or the like.

According to a first aspect of the present invention, there is provided a carton comprising a plurality of main panels forming a tubular structure and an end closure structure for at least partially closing the ends of the tubular structure. The plurality of main panels include a first panel, a second panel, a third panel, and a fourth panel, wherein the second panel and the fourth panel are arranged opposite to each other. The end closure structure includes a second end closure panel and a fourth end closure panel, wherein the second end closure panel is hingedly connected to the second panel along a second fold line, the fourth end closure panel The end closure panel is hingedly connected to the fourth panel along a fourth fold line, the second end closure panel and the fourth end closure panel overlap each other such that the second end closure panel covers the On the exterior surface of a portion of the fourth end closure panel, the second end closure panel has a free end edge opposite the second fold line, the fourth end closure panel has a free end edge opposite the second fold line. Four-fold line opposing free end edges, the free end edge of the fourth end closure panel having a concave corner cutout at least partially bounded by the first edge; the first edge and the second end Corresponding portions of the free end edges of the closure panels are matched to each other, in particular complementary in shape, and the second end closure panel and the fourth end closure panel are configured such that the first edge is unobstructed. The second end closure panel is covered.

According to a second aspect of the present invention, there is provided a blank for forming a carton. The green sheet includes a plurality of main panels for forming walls of the tubular structure and a plurality of end closure panels for forming an end closure structure for at least partially closing the ends of the tubular structure. The plurality of main panels are hinged to each other in a linear arrangement and include a first panel, a second panel, a second panel and a fourth panel. The second panel and the fourth panel are disposed oppositely in the formed tubular structure. The end closure structure includes a second end closure panel and a fourth end closure panel, wherein the second end closure panel is hingedly connected to the second panel along a second fold line, the fourth end closure panel The end closure panel is hingedly connected to the fourth panel along a fourth fold line. During the manufacture of the green sheets, two adjacent green sheets are arranged in a manner of 180° rotation relative to each other, and the upper and lower edges are flush.

According to an advantageous embodiment of the invention, the second end closure panel has a free end edge opposite the second fold line and the fourth end closure panel has a free end opposite the fourth fold line an edge, the free end edge of the fourth end closure panel has a concave corner cutout at least partially bounded by a first edge and a second edge, the concave corner cutout being closed with the second end The corners of the panels are complementary in shape so that for two blanks arranged adjacently, the second end of one of the blanks closes the corners of the panel that are received at the fourth end of the other blank in the corner cutout of the panel.

Within the scope of this application, it is contemplated that the various aspects, embodiments, examples, Features and Alternatives. For example, a feature described in connection with one embodiment applies to all embodiments unless there is an incompatibility of the feature.

Detailed descriptions of specific embodiments of packages, blanks and cartons are disclosed herein. It is to be understood that the disclosed embodiments are merely illustrative of the ways in which certain aspects of the invention may be practiced and are not intended to be a list of all ways in which the invention may be practiced. As used herein, the word "exemplary" is used broadly to refer to an embodiment serving as an illustration, sample, model, or mode. Indeed, it will be appreciated that the packages, blanks and cartons described herein may be implemented in various and optional forms. The drawings are not necessarily to scale and some features may be exaggerated or minimized to show details of particular components. Well-known components, materials, or methods are not necessarily described in great detail so as not to obscure the present disclosure. Any specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention.

FIG. 1 shows a plan view of a blank 10 capable of forming a carton or carrier 90 . The carton or carrier 90 can form secondary packaging to be used to package and contain a set of primary product containers or packages, such as, but not limited to, easy-open cans.

In the embodiments described in detail herein, for the non-limiting purpose of illustrating various features of the present invention, the terms "carton" and "carrier" refer to a vehicle for engaging, handling and/or dispensing items such as primary product containers. container. It is envisioned that the teachings of the present invention are applicable to a variety of product containers that may or may not be conical and/or cylindrical. Exemplary containers include bottles (eg, metal, glass, or plastic), cans (eg, aluminum), cans, bags, sachets, and the like.

The green sheets described herein are formed from a sheet of suitable substrate. It will be understood that, as used herein, the term "suitable substrate" includes a wide variety of foldable sheet materials, such as paperboard, corrugated board, cardboard, plastic, combinations thereof, and the like. It will be appreciated that, for example, where appropriate, one or more blanks may be employed to provide the carrier structure described in more detail below.

The packaging structures or cartons described herein may be formed from sheet-like substrates, such as paperboard, which may be fabricated or coated with specific materials to increase their strength. One surface of the substrate may have different characteristics than other surfaces. For example, the surface of the substrate on the outside of the finished package can be particularly smooth and can have a coating (such as a clay coating) or other surface treatments to provide good printability. On the other hand, the inward-facing surface of the substrate can be provided with a coating, coating, surface treatment, or otherwise prepared to provide desired properties, such as tear resistance, good adhesion, heat sealing or one or more other desired functional characteristics.

In the exemplary embodiment, the blanks 10 are configured to form a carton 90 or carrier 90 for packaging items. Among other things, the carton 90 can be sized and shaped, for example, for packaging cans arranged in a 2 x 6 matrix. It should be noted that the blanks can be configured as desired to form cartons or carriers for packaging any other type, quantity and size of items and/or for packaging items in different arrangements or configurations.

Referring to Figure 1, there is shown a blank 10 for forming a carton 90 (see Figure 2) according to a first embodiment. The blank 10 includes a plurality of main panels including: a first panel 12 hingedly connected to a second panel 14 by a fold line 11 ; a second panel 14 hinged to a third panel 16 by a fold line 13 ; the third panel 16, which is hingedly connected to the fourth panel 18 through the fold line 15; and the fourth panel 18, which is hingedly connected to the fixed panel 20 through the fold line 17.

Glue or other adhesive treatment may be applied to the securing panels 20 and/or to corresponding areas of the first panel 12 when the carton 90 is assembled. A portion of the first panel 12 is brought into surface contact relationship with the stationary panel 20 to secure the first panel 12 to the stationary panel 20 .

When the carton 90 is erected, the plurality of main panels 12, 14, 16, 18 of the first blank 10 form an open-ended tubular structure.

The ends of the tubular structure are at least partially closed by end closure structures. In the illustrated embodiment, the ends of the tubular structure bounded by the plurality of main panels 12, 14, 16, 18 are completely closed by first and second end closures, respectively.

The first end closure structure includes a plurality of end closure panels 22a, 24a, 26a, 28a and is configured to close the first end of the tubular structure. Therein, the first end closure panel 22a is hingedly connected to the first end of the first panel 12 by the fold line 21a. The second end closure panel 24a is hingedly connected to the first end of the second panel 14 by a fold line 23a. The third end closure panel 26a is hingedly connected to the first end of the third panel 16 by a fold line 25a. The fourth end closure panel 28a is hingedly connected to the first end of the fourth panel 18 by a fold line 27a.

The second end closure structure includes a plurality of end closure panels 22b, 24b, 26b, 28b and is configured to close the second end of the tubular structure. Therein, the fifth end closure panel 22b is hingedly connected to the second end of the first panel 12 through the fold line 21b. The sixth end closure panel 24b is hingedly connected to the second end of the second panel 14 by a fold line 23b. The seventh end closure panel 26b is hingedly connected to the second end of the third panel 16 by a fold line 25b. The eighth end closure panel 28b is hingedly connected to the second end of the fourth panel 18 by a fold line 27b.

In the first end closure configuration, both the second end closure panel 24a and the fourth end closure panel 28a form the primary end closure panel, both the first end closure panel 22a and the third end closure panel 26a A secondary end closure panel is formed.

In the second end closure configuration, both the sixth end closure panel 24b and the eighth end closure panel 28b form the primary end closure panel, both the fifth end closure panel 22b and the seventh end closure panel 26b A secondary end closure panel is formed.

In the illustrated embodiment, the second end closure panel 24a has a free end edge 31 opposite the fold line 23a and a free side edge 51 extending between the fold line 23a and the free end edge 31 .

The fourth end closure panel 28a has a free end edge 33 opposite the fold line 27a. At one end of the free end edge 33 there is a corner cutout that is concave relative to the free end edge 33 . At the end of the free end edge 33 of the fourth end closure panel 28a proximate the third panel 16 , the first edge 53 at least partially defines a corner cutout recessed from the free end edge 33 . The fourth end closure panel 28a has a free side edge 57 extending from the fold line 27a towards the free end edge 33 at an end of the fourth end closure panel 28a proximate the fixed panel 20 .

Continuing to refer to FIG. 1 and turn to FIG. 2, FIG. 2 shows the first end closure configuration of the first end of the carton 90 erected. In Figure 2, a panel is shown with a dashed edge to indicate that it is occluded. As shown in FIG. 2, the second end closure panel 24a and the fourth end closure panel 28a partially overlap each other, and wherein the second end closure panel 24a overlies an outer surface of a portion of the fourth end closure panel 28a , so as to be on the outside with respect to the fourth end closure panel 28a. The first edge 53 of the fourth end closure panel 28a is complementary in shape to the corresponding portion of the free end edge 31 of the second end closure panel 24a corresponding to the extent of the extension of the first edge 53 . In the embodiment shown, the first edge 53 of the fourth end closure panel 28a is spaced a distance from the free end edge 31 of the second end closure panel 24a and is not covered by the second end closure panel 24a , so that the first edge 53 of the fourth end closure panel 28a is exposed when viewed from the outside of the carton.

In the embodiment shown in Figure 2, the first edge 53, the free end edge 31 and the free end edge 33 are all substantially parallel to the fold lines 23a and 27a.

In a more preferred embodiment, the second edge 55 also at least partially defines a corner cutout recessed from the free end edge 33 . The second edge 55 of the fourth end closure panel 28a is complementary in shape to a portion of the free side edge 51 of the second end closure panel 24a that extends proximate the free end edge 31 .

At the end of the first end closure structure proximate the third panel 16, the free side edge of the second end closure panel 24a and the free side edge of the fourth end closure panel 28a have parallels that are substantially parallel to the fold line 25a The segments are roughly collinear. In the embodiment shown, the free side edge of the second end closure panel 24a includes an inclined section and a parallel section parallel to the fold line 21a. The free side edge 51 on the side of the second end closure panel 24a on the side proximate the third panel 16 has a longer sloped section and/or The greater angle of inclination brings the corners of the second end closure panel 24a closer to the first panel 12 than the corners of the third panel 16 closer to the central axis of the tubular structure.

In the illustrated embodiment, at the end of the first end closure structure proximate the first panel 12, the free side edge 51 of the second end closure panel 24a is at the free side edge of the fourth end closure panel 28a Extension near 57. As shown in FIG. 2, on both sides of the free end edge 31 of the second end closure panel 24a, the free side edge 57 of the fourth end closure panel 28a not covered by the second end closure panel 24a is separated from the fold line 21a The first distance D1 is smaller than the second distance D2 of the free side edge 51 of the second end closure panel 24a from the fold line 21a. In other words, the free side edge 51 of the second end closure panel 24a is closer to the central axis of the tubular structure than the free side edge 57 of the fourth end closure panel 28a.

In the embodiment shown in Figure 2, the second edge 55 is generally perpendicular to the first edge 53 and the free end edge 31 of the second end closure panel 24a. On both sides of the free end edge 31 of the second end closure panel 24a, the free side edge 57 of the fourth end closure panel 28a and the free side edge 51 of the second end closure panel 24a are substantially parallel to each other and parallel to the fold line 21a.

In the preferred embodiment of the invention, the corner cutout of the fourth end closure panel 28a bounded by the first edge 53 and the second edge 55 is on the opposite side from the corner cutout of the second end closure panel 24a The corners delimited by the free side edges 51 and the free end edges 31 are complementary in shape.

In the illustrated embodiment, a display window W1 is opened on the third panel 16 . When the articles are loaded into the carton, at least a portion of at least one article positioned adjacent to the display window can be viewed from the outside of the carton through the display window. Advantageously, the at least one item can be placed in a desired orientation relative to the opening provided by the display window W1 such that various labels and advertising materials to be displayed attached to or printed on the outer surface of the at least one item It can be optimally visible, eg, in conjunction with a pattern printed on the carton 90, to collectively provide the desired visual effect.

In the illustrated embodiment, the fourth panel 18 is provided with a substantially triangular opening W2. Through this opening, the product information provided on the surface of the articles loaded in the carton can be read from the outside of the carton, such as expiry dates usually printed on the outer surface of the articles, or barcodes in the form of printed stickers, and any other required information. In the illustrated embodiment, the opening W2 is provided on the bottom surface of the carton 90 so that product information on the bottom of an item such as an easy-open can can be seen. However, it should be understood that the opening W2 can be provided on any main panel as required.

The display window W1 and the opening W2 can be sealed with a transparent plastic film or any other suitable material as required to prevent dust and moisture from entering the carton 90 .

As shown in FIG. 2 , the second end closure panel 24a is provided with a weakening line 71 which extends from the free end edge 31 through the second end closure panel 24a and is connected to the weakening line 71 provided on the second panel 14 . Line 73 is connected. The weakened line 73 has an arc shape, one end of which is connected to the weakened line 71 , and the other end is terminated at the intersection of the folded line 11 and the folded line 23 a , thereby defining the arcuate portion 46 on the second panel 14 . To facilitate tearing of the second end closure panel 24a, a line of weakness 91 may be provided. The line of weakness 91 is arcuate, extending from the free end edge 31 and terminating at the line of weakness 71 . The line of weakness 91 and the line of weakness 71 together define the cut sheet 42 .

The fourth end closure panel 28a is provided with a line of weakness 75 which extends from the free end edge 33 through the fourth end closure panel 28a and connects with the line of weakness 77 provided on the fourth panel 18 . The line of weakness 77 is arc-shaped, one end of which is connected to the line of weakness 75 and the other end terminates at the intersection of the fold line 17 and the fold line 27 b , thereby defining the arcuate portion 48 on the fourth panel 18 . To facilitate tearing of the fourth end closure panel 28a, a line of weakness 93 may be provided. The line of weakness 93 is arc-shaped and ends at the line of weakness 75 at both ends. The line of weakness 93 and the line of weakness 75 together define the cut sheet 44 .

Continuing to refer to FIG. 2 , when the carton 90 is opened to obtain the articles, the materials on both sides of the weakened line 91 and the weakened line 93 can be easily separated first, so that the fingers can be easily inserted into the carton 90 through the cut piece 42 and the cut piece 44, and then to the carton 90. Pull outward so that the second end closure panel 24a tears along the line of weakness 71 and the fourth end closure panel 28a tears along the line of weakness 75, followed by the second panel 14 tearing along the line of weakness 73, the fourth panel 18 Tear along line of weakness 77. Thus, the portion of the second end closure panel 24a to the right of the line of weakness 71, the portion of the fourth end closure panel 28a to the right of the line of weakness 75, the arcuate portion 46 of the second panel 14, and the arcuate portion 48 of the fourth panel 18 , and the third end closure panel 26a together form a trough. The trough is hinged to the first panel 12 via the fold line 21b and is pivotable relative to the first panel 12 to form an opening at the end of the carton 90 closed by the second end closure structure, enabling access to loads in Items inside carton 90.

Figure 3 depicts a sheet of substrate and illustrates how multiple carton blanks Bl, B2 can be arranged or nested to maximize utilization of the sheet of substrate.

Both B1 and B2 are substantially the same as the green sheet 10 shown in FIG. 1 . When cutting, the blank B1 and the blank B2 are arranged in a 180° rotation relative to each other, the upper and lower edges of the blank B1 and the blank B2 are flush, and the second end of the blank B1 closes a corner of the panel is received exactly within the corner cutout defined on the fourth end closing panel of blank B2, and correspondingly, a corner of the second end closing panel of blank B2 is also received exactly at the fourth end of blank B1 inside the corner cutout defined on the top closure panel.

According to the configuration of the embodiment of the present invention, since the contours of the second end closure panel and the fourth end closure panel of the blanks are at least partially complementary, it is possible to shorten two adjacent blanks through proper nesting arrangement The distance between them, thereby effectively reducing the consumption of substrates for making carton blanks.

4 to 6 show a second embodiment according to the present invention. In the illustrated second embodiment, where possible, the same numerals are used to refer to the same parts, although the prefix "100" has been added to indicate that these features pertain to the second embodiment. The second embodiment shares many technical features with the first embodiment, and therefore, only its differences from the first embodiment shown in FIGS. 1 to 3 will be described in more detail.

Figure 4 illustrates a blank 110 for forming a carton 190 of the fully closed type (see Figure 5) according to the second embodiment. The blank 110 includes a first panel 112, which is hingedly connected to a fourth panel 118 by a fold line 111; a fourth panel 118, which is hingedly connected to a third panel 116 by a fold line 113; The second panel 114 . The second panel 114 is hingedly connected to the fixed panel 120 by the fold line 117 .

Glue or other adhesive treatment may be applied to the securing panel 120 and/or to corresponding areas of the first panel 112 when the carton 190 is assembled. A portion of the first panel 112 is brought into surface contact relationship with the fixed panel 120 to secure the first panel 112 to the fixed panel 120 .

When the carton 190 is erected, the plurality of main panels 112, 114, 116, 118 of the blank 110 form an open-ended tubular structure.

The ends of the tubular structure are at least partially closed by end closure structures. In the illustrated embodiment, the ends of the tubular structure bounded by the plurality of primary panels 112, 114, 116, 118 are completely closed by first and second end closure structures, respectively.

Therein, the first end closure structure includes a plurality of end closure panels 122a, 124a, 126a, 128a and is configured to close the first end of the tubular structure. Wherein, the first end closing panel 122a is hingedly connected to the first end of the first panel 12 through the folding line 121a. The second end closure panel 124a is hingedly connected to the first end of the second panel 14 by a fold line 123a. The third end closure panel 126a is hingedly connected to the first end of the third panel 116 by a fold line 125a. The fourth end closure panel 128a is hingedly connected to the first end of the fourth panel 118 by a fold line 127a.

The fourth end closure panel 128a has a free end edge 133 opposite the fold line 127a and a corner cutout at the end of the free end edge 133 that is recessed relative to the free end edge 133 . In the illustrated embodiment, at the end of the free end edge 133 of the fourth end closure panel 128a proximate to the first panel 112, the first edge 153 and the second edge 155 at least partially define a distance from the free end Bottom edge 133 is recessed corner cutout.

The second end closure panel 124a has a free end edge 131 opposite the fold line 123a.

Continuing to refer to FIG. 4, and turning to FIG. 5, FIG. 5 shows the second end closure configuration of the end of the carton 190 erected. The second end closure panel 124a and the fourth end closure panel 128a partially overlap each other, and wherein the second end closure panel 124a overlies the outer surface of the fourth end closure panel 128a so as to be opposite to the fourth end closure panel 128a. The partial closure panel 128a is located on the outside. In the illustrated embodiment, the first edge 153 of the corner cutout of the fourth end closure panel 128a meets and aligns with the free end edge 131 of the second end closure panel 124a, are complementary in shape, and An edge 153 is not covered by the second end closure panel 124a, so the first edge 153 of the fourth end closure panel 128a is exposed when viewed from the outside of the carton.

Figure 6 depicts a sheet of substrate and illustrates how multiple carton blanks B3, B4 can be arranged or nested to maximize the utilization of the sheet of substrate.

Both B3 and B4 are substantially the same as the embryo sheet 110 shown in FIG. 4 . During cutting, the blanks B3 and B4 are arranged in a 180° rotation relative to each other, the upper and lower edges of the blanks B3 and B4 are flush, and the second end of the blanks B3 closes a corner of the panel is received exactly within the corner cutout defined on the fourth end closure panel of blank B4, and correspondingly, a corner of the second end closure panel of blank B3 is also received exactly at the fourth end of blank B4 inside the corner cutout defined on the top closure panel.

According to the configuration of the embodiment of the present invention, since the contours of the second end closure panel and the fourth end closure panel of the blank are at least partially complementary, it is possible to effectively reduce the time required to manufacture the carton blank through proper nesting arrangement. Substrate consumption.

It is to be understood that various changes can be made within the scope of the present invention. For example, the size and shape of panels, windows and openings can be adjusted to accommodate items of different sizes or shapes.

It will be recognized that, as used herein, terms such as "top", "bottom", "base", "front", "rear", "end", "side", "inner", "outer", "outer" Orientation references to left, right, top, and bottom do not necessarily limit the corresponding panels to such orientations, but may only be used to distinguish these panels from each other.

As used herein, a "line of weakness" refers to any line in a foldable sheet material, such as paperboard, that defines a line of separation that serves to facilitate separation of portions of a blank formed from the sheet material from each other, or otherwise indicates The best separation position on the embryo sheet. The line of weakness may be formed by a single cut line, a single half-cut line, a perforated line, a cut line, a short seam line, a half-cut line, any combination thereof, and the like.

As used herein, the term "hinge" refers to all means of connection provided by one or more fold lines that define the hinge feature of a sheet or substrate of a blank. Such one or more fold lines facilitate folding corresponding portions of the blanks or substrates relative to each other, or otherwise indicate optimal folding locations of the blanks or substrates. Any reference to "hinged" should not be construed as necessarily referring to a connection provided by only a single polyline; indeed, "hinged" may refer to a connection formed by two or more polylines.

The term "fold line" as used herein refers to any line that defines a hinge line in a foldable substrate, such as paperboard, that is used to facilitate the folding of portions of the substrate or blank relative to each other, or otherwise indicates The optimal fold position on the substrate or blank. The crease line may be formed from a single indentation, a single half-tangent, a perforated line, a trimming line, a slashed indentation line, a half-tangent line, a creasing line, etc., and any combination thereof, and the like.

It will be appreciated that elements such as fold lines, creases, half-cuts, seam cuts, perforations, etc., fold lines or cut-off lines can be sized to provide the desired functionality. For example, perforated lines can be sized to a lesser degree or designed to define fold lines and/or cut lines. The perforated lines can be designed to facilitate folding and prevent breakage, to facilitate folding and to facilitate breaking with more force, or to facilitate breaking with less force.

10, 110, B1, B2, B3, B4: embryo slices 12, 112: The first panel 14, 114: Second panel 16, 116: The third panel 18, 118: Fourth panel 20, 120: Fixed panel 11, 13, 15, 17, 21a, 21b, 23a, 23b, 25a, 25b, 27a, 27b, 111, 113, 115, 117, 121a, 121b, 123a, 123b, 125a, 125b, 127a, 127b: Folding line 22a, 22b, 24a, 24b, 26a, 26b, 28a, 28b, 122a, 122b, 124a, 124b, 126a, 126b, 128a, 128b: End closure panels 31, 33, 131, 133: Free end edge 42, 44: Cut sheet 46, 48: bow 51, 57: Free side edge 53, 153: First Edge 55, 155: Second Edge 71, 73, 75, 77, 91, 93: Weakening lines 90, 190: carton D1, D2: distance W1: Display window W2: Opening

Embodiments of the invention will now be described with reference to the accompanying drawings, in which: 1 is a top plan view of a blank for forming a carton according to a first embodiment; Figure 2 is a perspective view of a carton formed from the blanks of Figure 1; Figure 3 is a top plan view of a sheet of substrate and illustrates how a plurality of blanks similar to the blanks shown in Figure 1 may be cut from the substrate; 4 is a top plan view of a blank for forming a carton according to a second embodiment; Figure 5 is a perspective view of a carton formed from the blanks of Figure 4; and 6 is a top plan view of a sheet of substrate and illustrates how a plurality of blanks similar to the blanks shown in FIG. 4 may be cut from the substrate.

10: Embryos

12: The first panel

14: Second panel

16: The third panel

18: Fourth panel

20: Fixed panel

11, 13, 15, 17, 21a, 21b, 23a, 23b, 25a, 25b, 27a, 27b: Polylines

22a, 22b, 24a, 24b, 26a, 26b, 28a, 28b: end closure panels

31, 33: Free end edge

42, 44: Cut sheet

46, 48: bow

51, 57: Free side edge

53: First Edge

55: Second Edge

71, 73, 75, 77, 91, 93: Weakening lines

W1: Display window

W2: Opening

Claims (11)

A carton (90, 190) for packaging articles, the carton comprising a plurality of main panels for forming a tubular structure and an end closure structure for at least partially closing the ends of the tubular structure, the plurality of The main panels include a first panel (12, 112), a second panel (14, 114), a third panel (16, 116) and a fourth panel (18, 118), wherein the second panel (14, 114) ) and the fourth panel (18, 118) are arranged opposite each other, the end closure structure includes a second end closure panel (24, 124) and a fourth end closure panel (28, 128), wherein, Said second end closure panel (24, 124) is hingedly connected to said second panel (14, 114) along a second fold line (23, 123) and said fourth end closure panel (28, 128) ) is hingedly connected to said fourth panel (18, 118) along a fourth fold line (27, 127), Wherein, the second end closure panel (24, 124) and the fourth end closure panel (28, 128) overlap each other, so that the second end closure panel (24, 124) covers the On the outer surface of a portion of the fourth end closure panel (28, 128), the second end closure panel (24, 124) has a free end edge ( 31, 131), said fourth end closure panel (28, 128) having a free end edge (33, 133) opposite said fourth fold line (27, 127), wherein said fourth end The free end edge (33, 133) of the closure panel (28, 128) has a concave corner cutout at least partially bounded by a first edge (53, 153); wherein the first edge (53, 153) Complementary in shape with corresponding portions of the free end edges (31, 131) of said second end closure panels (24, 124) and said second end closure panels (24, 124) and said first end closure panels (24, 124) The four end closure panels (28, 128) are constructed such that the first edge (53, 153) is not covered by the second end closure panel (24, 124) and is exposed for removal from the carton ( 90, 190) can be observed when viewed from the outside. The carton of claim 1, wherein the first edge is spaced a distance apart from the free end edge of the second end closure panel. The carton of claim 1, wherein the first edge is substantially aligned with the free end edge of the second end closure panel. The carton of any of claims 1 to 3, wherein the second end closure panel has a free side edge extending from the second fold line to its free end edge, wherein compared to on the free side edge of the second end closure panel on the side where the corner cutout of the end closure structure is located, the second end closure panel on the side of the end closure structure The free side edge on the side opposite the corner cutout has a longer beveled section or a larger beveled angle. The carton of any of claims 1 to 3, wherein the concave corner cutout on the fourth end closure panel is at least partially defined by a second edge, wherein the second edge the end closure panel has a free side edge extending from the second fold line to its free end edge, the fourth end closure panel has a free side edge extending from the fourth fold line towards its free end edge, wherein at least a portion of the free side edge of the second end closure panel is complementary in shape to the second edge, and wherein in the vicinity of the free end edge of the second end closure panel, compared to The portion of the free side edge of the fourth end closure panel that is not covered by the second end closure panel, the free side edge of the second end closure panel being closer to the central longitudinal axis of the tubular structure. The carton according to claim 5, wherein the first edge and the second edge are perpendicular to each other. The carton of claim 5, wherein the concave corner cutout of the fourth end closure panel defined by the first edge and the second edge is closed with the second end The corners of the panels bounded by the free side edges and the free end edges are complementary in shape. The carton of claim 1, wherein at least one of the main panels is provided with a display window (W1), so that when articles are loaded into the carton (90, 190), at least one of the main panels is provided with a display window (W1). At least a portion of an article positioned adjacent to the display window (W1) is visible from the outside of the carton through the display window (W1). The carton of claim 1, wherein at least one of the main panels is provided with an opening (W2), such that when articles are loaded into the carton, at least one of the main panels is connected to the opening (W2). W2) The markings on the adjacently arranged items are visible from the outside of the carton through the opening (W2). A blank comprising a plurality of main panels for forming walls of a tubular structure and a plurality of end closure panels for forming an end closure structure for at least partially closing ends of the tubular structure, the A plurality of main panels are hinged to each other in a linear arrangement and include a first panel, a second panel, a second panel and a fourth panel, wherein the second panel and the fourth panel are opposed in the formed tubular structure The end closure structure includes a second end closure panel and a fourth end closure panel, wherein the second end closure panel is hingedly connected to the second panel along a second fold line such that The fourth end closure panel is hingedly connected to the fourth panel along a fourth fold line, wherein, during manufacture of the blanks, adjacent two of the blanks are rotated at 180° relative to each other. and the upper and lower edges are flush; wherein the second end closure panel has a free end edge opposite the second fold line, and the fourth end closure panel has a free end edge opposite the fourth fold line The opposite free end edge, the free end edge of the fourth end closure panel has a concave corner cutout at least partially bounded by the first edge and the second edge, the concave corner cutout being connected to the The corners of the second end closure panel are complementary in shape such that for two blanks arranged adjacently, the corner of the second end closure panel of one of the blanks can be received at the corner of the other blank The fourth end is closed in the corner cutout of the panel. The blank according to claim 10, wherein the blank is used to form the carton according to any one of claims 1 to 9.

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