TW202012271A - Carton and blank therefor - Google Patents

Abstract

Aspects of the disclosure relate to an article bottom-receiving arrangement, a carton for packaging a plurality of articles and to a blank for forming the carton. The carton comprises plurality of walls including; a top wall, a first side wall, a second side wall and a first base wall hingedly connected to the first side wall by a first fold line. The carton comprises a heel opening for receiving a heel portion of an article. The heel opening is struck from at least the first side wall. The heel opening includes at least one extended portion in the form of a recess. The recess comprises proximal end which opens towards the perimeter of the heel opening. The heel opening may be generally circular in shape. The heel opening comprises a centre. The recess is located at a position along the perimeter of the heel opening such that a first notional line which passes through the centre of the heel opening and through a distal end of the recess intersects with an adjacent end edge of the carton.

Description

Carton and its embryo

The present invention relates to carton boxes and green sheets used to form the carton boxes, especially but not limited to a wrap-around carrying device with a foldable corner structure.

In the packaging world, cartons are often used to load different items. The carton technique is well known and can be used by consumers to move and store a group of items to be consumed. Based on cost and environmental considerations, such cartons or carrying equipment must be formed with the least possible materials, and waste must be minimized. Another consideration is the strength of the carton and the suitability for storing and transporting heavy items, with the hope that the contents of the carton are safe and intact in the carton.

The present invention is intended to produce cartons formed from nestable green sheets under conditions that are compatible with the environment and economic benefits, and to promote the removal of increased or maximized carton blanks from standard or fixed width cardboard or other boards The number of tablets.

The invention also hopes that when carrying the carton in the bag or the bag, the integrity of the bag or the items in the bag will not be torn or destroyed.

The present invention seeks to provide improvements in the field of cartons that are usually formed of cardboard or similar materials.

The first aspect of the present invention is an article heel engaging member in a carton having a side wall. The article heel engaging member includes an opening at least partially defined in the side wall of the carton and at least one extension of the opening forming a first recess. The first notch includes a proximal end that opens toward the perimeter of the opening. The opening may be generally circular. The opening includes a center. The first notch is located at a position on the perimeter of the opening so that a first imaginary line passing through the center of the opening and over a distal end of the first notch and an adjacent end of the carton Fate intersects.

Optionally, the at least one extension of the opening includes a second recess that includes a proximal end that opens toward the perimeter of the opening. The first notch is located on a first side of a second imaginary line and is located at a position on the perimeter of the opening, the second imaginary line passes through the center of the opening and is folded from a first The line extends vertically, and wherein the second notch is located on a second opposite side of the second imaginary line and is located at a position on the perimeter of the opening.

The second aspect of the present invention is to provide a carton for packaging one or more items. The carton includes a plurality of wall panels. The wall panels include a top wall, a first side wall, a second side wall, and a first bottom wall hinged to the first side wall using a first folding line. The carton may include a heel opening for receiving a heel of an article. The heel opening may be pressed from at least the first side wall. The heel opening includes at least one extending portion forming a first recess. The first notch includes a proximal end that opens toward the perimeter of the heel opening. The heel opening can be generally circular. The heel opening includes a center. The first notch is located at a position on the perimeter of the heel opening so that a first imaginary line that passes through the center of the heel opening and across a distal end of the first notch and the carton The adjacent edge of the intersection.

Optionally, the at least one extension of the heel opening includes a second notch including a proximal end that opens toward the perimeter of the heel opening. The first notch is located on a first side of a second imaginary line and is located at a position on the perimeter of the heel opening, the second imaginary line passes through the center of the heel opening and from a The first fold line extends vertically, and wherein the second notch is located on a second opposite side of the second imaginary line and is located at a position on the perimeter of the heel opening.

Optionally, the carton includes a deformable structure defined on the first side wall between the heel opening and the abutting end edge of the carton.

Optionally, the deformable structure includes a second fold line extending from the first recess to the abutting end edge of the carton.

Optionally, the second fold line extends along the first imaginary line.

Optionally, a third notch is defined at the intersection of the first imaginary line and the adjacent end edge of the carton.

Optionally, the deformable structure further includes a cutting line that is generally perpendicular to the first folding line.

Optionally, the deformable structure further includes a release structure including at least one third folding line provided between the cutting line and the adjacent end edge of the carton.

A third aspect of the present invention is to provide an article heel engaging member in a carton having a first plate and a second plate hinged to itself with a first hinge. The article heel engaging member includes an opening at least partially defined on the first sheet of the carton and at least one extension of the opening forming a first recess. The first notch includes a proximal end that opens toward the perimeter of the opening. The opening includes a center. A first imaginary line N1 crosses the center of the opening and extends vertically from the first hinge. The first notch The first notch is located at a position on the perimeter of the opening so that a second imaginary line N2 passing through the center of the opening and over a distal end of the first notch and The first imaginary line N1 defines an acute angle θ1.

Optionally, the at least one extension of the opening includes a second recess that includes a proximal end that opens toward the perimeter of the opening. The first notch is located at a position on the perimeter of the opening on a first side of the first imaginary line, and the second notch is located on a second opposite side of the first imaginary line At a location on the perimeter of the opening.

Optionally, the at least one extension of the opening includes a second recess that includes a proximal end that opens toward the perimeter of the opening. The second notch is located at a position on the perimeter of the opening so that a third imaginary line N5 and the first imaginary line that pass through the center of the opening and over a distal end of the second notch N1 defines an acute angle θ3.

The fourth aspect of the present invention is to provide a carton for packaging one or more items. The carton includes a plurality of wall panels. The wall panels include a top wall, a first side wall, a second side wall, and a first bottom wall hinged to the first side wall using a first folding line. The carton may include a heel opening for receiving a heel of an article. The heel opening is pressed from at least the first side wall. The heel opening includes at least one extension forming a notch. The notch includes a proximal end that opens toward the perimeter of the heel opening. The heel opening includes a center. A first imaginary line N1 extends vertically from a hinged portion across the center of the opening from between the first side wall and an adjacent wall panel. The notch is located at a position on the perimeter of the heel opening so that a second imaginary line N2 and the first imaginary line passing through the center of the heel opening and over a distal end of the notch N1 defines an acute angle θ1.

Optionally, the carton includes a deformable structure at least partially defined on the first side wall and disposed between the heel opening and a free end edge of the carton. The deformable structure includes a flap defined by a portion of the first fold line and a second fold line. The second fold line may be located upon the second imaginary line N2.

Optionally, the deformable structure includes a release structure including a third fold line and a cutting line extending from one end of the third fold line.

Optionally, the cutting line extends substantially perpendicular to the first folding line with respect to the first folding line.

Optionally, the first side wall includes a fourth fold line extending longitudinally across the first side wall to define a slant plate.

Optionally, a portion of the heel opening is defined from the sloping plate piece and a cutting line cuts off the fourth folding line so that the heel opening is spaced from the fourth folding line.

A fifth aspect of the invention is to provide a green sheet for forming a carton. The blank includes a plurality of plates, the plates including a top plate, a first side plate, a second side plate, and a first bottom plate hinged to the first side plate using a first folding line. The green sheet may include a heel opening for receiving a heel of an article. The heel opening can be pressed from at least the first side panel. The heel opening includes at least one extension forming a notch. The notch includes a proximal end that opens toward the perimeter of the heel opening. The heel opening can be generally circular. The heel opening includes a center. The notch is located at a location on the perimeter of the opening so that an imaginary line passing through the center of the opening and across a distal end of the notch intersects an adjacent end edge of the carton.

Within the scope of the application of this case, the various aspects, embodiments, examples, features, and alternatives contained in the foregoing content, the scope of patent application, and/or the following detailed description and illustrations are all conceived to be used individually or in combination . For example, the features described in one embodiment can be applied to all other embodiments unless they are incompatible.

Descriptions of features or components connected or related to the embodiments are applicable to all the embodiments unless the feature is not compatible. One or more features or components from the embodiments may be incorporated or incorporated into any other embodiments disclosed herein, and the features or components employed from the embodiments may include other implementations in addition to or instead of Examples of one or more features or components.

A characteristic or combination of characteristics of an embodiment disclosed herein may be adopted from it alone. Alternatively, a characteristic or combination of characteristics of an embodiment may be omitted from the embodiment.

Some specific embodiments of the packaging, blanks and cartons of the present invention will now be described in detail. It should be understood that these embodiments are merely illustrative of some ways in which certain aspects of the invention can be implemented, and therefore do not represent a complete list of all ways in which the invention can be embodied. The "example" referred to herein generally refers to various embodiments as examples, samples, models, or styles. In fact, the packaging, blanks and cartons described in this article can be implemented in various and alternative forms. In addition, the drawings are not necessarily to scale, and some features may be exaggerated or reduced to show the details of certain components. Various well-known components, materials or methods are not necessarily described in detail so as not to hinder the content of the present invention. Any specific structural and functional details described in this article should not be regarded as restrictive, but only as a basis for the scope of the patent application and as a representative basis for teaching the person skilled in the art to apply the invention in all aspects.

As shown in FIG. 1, it shows a plan view of a blank 10 used to form a carton or carrier 90. As shown in FIG. 3, the carton or carrier is used to house and carry primary items such as but not limited to beverage cans The product, hereinafter referred to as "article B". The green sheet 10 may be assembled to form a secondary package that packages at least one primary product container or package.

As shown in FIG. 5, it shows a plan view of a blank 110 formed to contain and carry a primary product container such as but not limited to a beverage can, hereinafter referred to as “item B”. The blank 110 can be assembled to form a secondary package that packages at least one primary product container or package.

In the various embodiments detailed herein, based on the unrestricted purpose of exemplifying the various characteristics of the present invention, the term "carton" and "carrying device" refer to items B used to engage and carry, such as The container 90 of the primary product container B. However, the teachings of the present invention are also conceived to be applicable to various product containers B that may or may not be oblique cones and/or cylindrical in shape. Other examples of containers include bottles (eg, metal, glass, or plastic bottles), cans (eg, aluminum cans), tin cans, cups, jugs, storage bags, and boxes.

The green sheets 10; 110 are formed with a suitable substrate. It should be understood that the "applicable substrate" referred to herein includes a variety of foldable sheets, such as cardboard, corrugated paper, cardboard, plastic, and combinations thereof. It should also be recognized that the number of embryo pieces used to produce the carrying structure to be described later can be, for example, one piece or other numbers.

The sheet material forming the packaging structure or carton 90 described herein may be, for example, made of strength-enhancing materials, or cardboard coated with strength-enhancing materials. An example of such a sheet is the tear-resistant NATRALOCK® paperboard produced by WestRock. It should be noted that more than one layer of tear-resistant material can be used to improve the tear resistance of the packaging. In general, the characteristics of one side of the sheet can be different from the other side. For example, the surface of the sheet of the finished package facing outward may be very smooth, and may have a coating such as clay coating or other surface treatment to exert good printability. In addition, the coating, surface or treatment of the sheet surface facing inwards may have, or be separately prepared to have one or more other properties, such as tear resistance, good adhesion, heat sealability, or other Intended functionality.

In the illustrated embodiment, the green sheets 10; 110 are designed to form a carton or carrier 90 for packaging a certain item B of a certain configuration. The configuration of this embodiment is an mxn, a matrix or array of two columns (m=2) and three rows (n=3); the two columns set in the illustrated embodiment each have three items B, that is, 500 ml Of beverage cans. Alternatively, the isoforms 10; 110 can also be designed to form a carrier for packing other types, quantities and sizes, and/or articles B of different configurations or configurations, such as but not limited to fully enclosed Carton or basket-type carrying equipment, and such items B may be bottles or jars.

Turning now to FIG. 1, the shown is a blank 10 for forming a carton 90 (see FIG. 3) according to the first embodiment. The green sheet 10 includes a plurality of main board pieces 12, 14, 16, 18, 20, 22, 24 for forming a tubular structure. The main board pieces 12, 14, 16, 18, 20, 22, 24 include: a first A base plate 12, a first corner plate 14, a first side plate 16, a top plate 18, a second side plate 20, a second corner plate 22 and a second bottom plate 24. The main board pieces 12, 14, 16, 18, 20, 22, and 24 can be set to use the corresponding folding lines 13, 15, 17, 19, 21, and 23 to form a straight line and sequentially hinge from one piece to the next piece.

In other embodiments, the first and second corner plates 14, 22 and the folding lines 15, 21 may be omitted.

In the illustrated embodiment, the fold line 15 is formed by a first portion 15a and a second portion 15b, which will be described in detail below. Similarly, the folding line 21 is formed by a first portion 21a and a second portion 21b.

Optionally, the green sheet 10 includes a shock-absorbing arrangement. A first shock absorption or damping setting G1 is provided to reduce or absorb forces such as, but not limited to, impact forces spread within the carton 90.

The first damping device G includes a pair of cutting members in the form of cutting lines or cutting lines 17a, 17b. The cutting members are separated from each other so as to define a score or bridge between them. The shapes of the cutting lines 17a and 17b are straight lines. A first cutting line 17a is arranged in line with a second cutting line 17b. With respect to the folding line 17 connecting the first side panel 16 to the top panel 18, the first and second cutting lines 17a, 17b are arranged in line with the folding line 17.

The blank 10 includes a second damping device G2 for reducing or absorbing the forces such as, but not limited to, impact forces spread in the carton 90.

The second damping device G2 includes a pair of cutting lines or cutting lines 19a, 19b spaced apart from each other so as to define a score or bridge between them. The shapes of the cutting lines 19a and 19b are straight lines. A third cutting line 19a is arranged in line with a fourth cutting line 19b. With respect to the folding line 19 connecting the second side panel 20 to the top panel 18, the third and fourth cutting lines 19a, 19b are arranged in line with the folding line 19.

The cutting member (cutting lines 17a, 17b, 19a, 19b) can deviate from a corresponding hinge (folding line 17) between the top panel 18 and the corresponding one of the first and second side panels 16, 20 , 19). In this way, the cutting lines 17a, 17b, 19a, and 19b can be provided on the top plate piece 18 or the side plate pieces 16, 20. In other embodiments, the cutting lines 17a, 17b, 19a, and 19b may be provided on the top plate piece 18 and the side plate pieces 16, 20. The cutting lines 17a, 17b, 19a, and 19b may be parallel to the corresponding hinge portions 17, 19 and/or provided in the vicinity of the corresponding hinge portions 17, 19.

The folding line 13 and the folding line 23 may optionally include a cutting line or a cutting line 13a, 13b, 23a, 23b, which is collinear with a corresponding one of the folding line 13 and the folding line 23, so as to break the folding line 13, 23. The cutting lines 13a, 13b, 23a, 23b may additionally provide shock absorption or damping devices near the bottom of the carton 90.

The first and second corner plates 14, 22 may form a corresponding one of the first or second side plates 16, 20 to which they are hinged, or the first or second bottom plates 12, 24 The bottom of the corresponding piece.

The blank 10 can be bent to form a package 90 as shown in FIG. 3. The first and second bottom plates 12, 24 are joined to each other in an overlapping relationship to form a composite bottom wall panel 12/24 of the carton 90. The green sheet 10 may include a complementary locking mechanism, whereby the second bottom sheet 24 is fixed to the first bottom sheet 12. The second bottom plate 24 may include at least one first portion F of a complementary locking mechanism. The first bottom plate 12 may include at least one second portion M of a complementary locking mechanism. In the illustrated example, the second base plate 24 includes a plurality of tongue pieces F that define an opening in the second base plate 24. The first base plate 12 includes a plurality of tabs M, and the opening of the second base plate 24 is designed to accommodate a corresponding one of the tabs M. The female tongue pieces F are arranged to be displaced from the second bottom plate piece 24 to form the opening, and to resist the male tongue pieces M when they are accommodated in the opening. In other embodiments, the complementary locking mechanism M/F may be omitted, and other tools such as but not limited to adhesives or staples may be used to make the first and second bottom plates 12, 24 are fixed to each other.

Optionally, the first and second base plates 12, 24 may include at least one first aperture A1. In the illustrated embodiment, the first and second base plates 12, 24 each include two first apertures A1. Optionally, each of the first and second base plates 12, 24 may include at least one second aperture A2. In the illustrated embodiment, the first and second base plates 12, 24 each include a second aperture A2. These first and second orifices A1, A2 can contribute to the structure of the carton 90. A packaging machine assembly is engaged with the first and second apertures A1, A2, so that the plates 12, 14, 16, 18, 20, 22, 24 are wound around a group of items B. The first and second apertures A1, A2 also help to align the first and second bottom plate pieces 12, 24 with each other, or the first portion F of the complementary locking mechanism and the complementary lock The second part M of the fixing mechanism is aligned.

The complementary locking mechanism shown and described is completely optional.

The green sheet 10 may include at least one heel engaging structure N to engage with a heel or lower portion of an article B. The green sheet 10 shown in FIG. 1 includes six heel joint structures N each configured to join a corresponding article B. The structures of the heel joint structures N are substantially similar. Therefore, only the heel joint structure N provided in the second side plate 20 in FIG. 2 will be described below.

The heel engaging structure N may include an opening. The openings are respectively defined by a part of a heel opening A3 and a part of a heel tongue 42. The heel tongue 42 is hinged to the first bottom plate 12 by a folding line 43. The heel tongue 42 is pressed from the first corner plate 14.

The folding line 43 breaks off the folding line 13 that hinges the first bottom panel 12 to the first corner panel 14. The shape of the fold line 43 may be non-linear. In the illustrated embodiment, the shape of the fold line 43 is curved or arched. In other embodiments, at least two of them may be diverged from each other. And formed by linear fold lines connected to each other.

The heel tongue 42 may include a pair of bifurcated fold lines 45a, 45b, and may define a corner portion of the heel tongue 42 that can be bent.

During the erecting and packaging of the article B, the blank 10 is made to allow each heel opening A3 to accommodate the bottom of the corresponding article B, so that the article B is fixed in the carton 90. The heel tongue 42 is also bent to help secure the items B. It is also possible to bend the first and second bottom plates 12, 24 outwards so that the heel tongue 42 extends inwardly, and when the first and second side plates 16, 20 are wound around When an article group is bent, the heel tongues 42 are provided below the corresponding article B. Then, the first and second bottom plates 12, 24 are bent around the bottom of the article group. When doing so, the heel tongues 42 are engaged with the corresponding article B and use the folding line 43 A corresponding one of the hinged first and second bottom plates 12, 24 is bent.

The heel tabs 42 facilitate fixing or locking the heel or bottom of an article B in place.

The green sheet 10 includes at least one deformable or bent structure FS1, FS2, FS3, FS4. The green sheet 10 shown includes several bending structures FS1, FS2, FS3, FS4, or optionally four bending structures FS1, FS2, FS3, FS4. Each bending structure FS1, FS2, FS3, FS4 forms a deformable corner area of a carton 90, or optionally a lower or lower corner area. The bending structures FS1, FS2, FS3, FS4 include an arrangement of fold lines and notches and are suitable for eliminating or reducing the sharpness and/or hardness of a sharp corner or edge of the carton 90. This structure is beneficial for the carton 90 to be transported or carried in a shopping bag, especially but not limited to those shopping bags formed of plastic, paper or similar plates. The bending structures FS1, FS2, FS3, and FS4 avoid or reduce the possibility of puncturing and tearing of the carton 90, or the possibility of forming materials that puncture the shopping bag. It should be understood that any puncture in the shopping bag will jeopardize the carrying capacity of the shopping bag, and once the shopping bag is torn, it may cause the carton 90 or other objects placed in the shopping bag to pour out and The possibility of its consequent damage.

The structures of the bending structures FS1, FS2, FS3, and FS4 are substantially similar, and the description thereof refers to a bending structure FS3 shown in FIG. 2 and provided on the second side plate 20.

The bending structure FS3 includes a first portion 82 pressed from the second side panel 20 and a release tab 82/84 formed from a second portion 84 pressed from the second corner panel 22. In the embodiment, the first or second corner plates 14 and 22 are omitted, and the release wings 82/84 may be formed by a part of the second side plate 20 and a part of the second bottom plate 24, Or completely formed by the second side panel 20.

The release flaps 82/84 are partially defined by the first fold line 83 provided on the second side panel 20 and partially defined by the second fold line 87 provided on the second corner panel 22.

The first fold line 83 and the opposite second fold line 87 are arranged in a split manner. The first and second fold lines 83, 87 diverge toward the longitudinal or free side edge of the green sheet 10. The first and second folding lines 83, 87 include a first end closest to each other and a second end farthest from each other.

The first folding line 83 defines a third imaginary line N3, and the second folding line 87 defines a fourth imaginary line N4. The third and fourth imaginary lines N3 and N4 define a second angle θ ₂ therebetween. Optionally, the second angle θ ₂ is an acute angle. Optionally, the second angle θ _{2 is} less than 70 degrees. The second angle θ ₂ may be in the range of 0 degrees to 70 degrees (0°<𝜃 ₂ ≤70°). In some embodiments, the second angle θ _{2 is} in the range of 30 degrees to 45 degrees (30 °≤𝜃 ₂ ≤45°).

A part of the release tab 82/84 is defined by a cutting line or cutting line 93. The cutting line 93 may extend from the first end of the first folding line 83 toward the first end of the second folding line 87. The cutting line 93 may substantially extend from between the first closest end of the first folding line 83 and the first closest end of the second folding line 87. The cutting line 93 may connect the first end of the first fold line 83 to the first end of the second fold line 87 so as to be connected thereto. The cutting line 93 may be substantially parallel to an adjacent portion of the longitudinal or free edge of the green sheet 10. Therefore, the release tab 82/84 may be substantially trapezoidal.

The cutting line 93 is generally arranged perpendicular to a folding line 23 between the second side panel 20 (or the second corner panel 22) and the bottom panel 24 of the carton 90.

A third fold line 85 substantially bisects the release flap 82/84 and hinges the first portion 82 to the second portion 84. The third fold line 85 may be substantially collinear with the fold line 21 (21a/21b) that hinges the second side panel 20 to the second corner panel 22. In some embodiments, the third fold line 85 may be off-center so that the release tab 82/84 is asymmetric with respect to the third fold line 85.

The cutting line 93 defines a first end of the third fold line 85 so that the third fold line 85 is spaced from an adjacent heel opening A3.

The cutting line 93 defines the ends of the first and second fold lines 83, 87 so that the first and second fold lines 83, 87 are spaced apart from the adjacent heel opening A3.

The first and second portions 21a, 21b of the fold line 21 may include cutting lines 95 each defining an end of each of the first and second portions 21a, 21b. In this way, the first and second portions 21a, 21b of the folding line 21 are each spaced apart from the pair of heel openings A3 provided therebetween.

This spacing can prevent or reduce the spread of tear from the heel aperture A3.

The cutting lines 93 and 95 can redirect, redistribute or distribute the force or load stress on the substrate of the carton 90 to be away from the heel openings A3.

The release flap 82/84 is provided between a longitudinal or free side edge of the blank 10 and an abutment orifice A3 at the extreme end.

The bending structure FS3 may include a fold line 81 defining a part of the corner flap 80/86. A part of the corner flap 80/86 is formed by the second side panel 20 and another part is formed by the second corner panel 22. The corner flap 80/86 is also partially delimited by a part of the fold line 23. The lower portion 86 of the corner flap 80/86 is provided by the second corner plate 22; and the upper portion 80 of the corner flap 80/86 is provided by the second side plate 20. The release flap 82/84 is pressed from the corner flap 80/86.

The blank 10 may include a first notch or notch R1 pressed from its longitudinal or free side edges. A part of the first recess R1 is pressed from the corner flap 80/86. In the embodiment of FIG. 1, the first recess R1 is substantially triangular, so as to define a “V”-shaped free edge. The first recess R1 breaks off or defines an end point of the folding line 81. The folding line 81 extends substantially toward the vertex of the "V" shape. The folding line 81 can terminate or be close to the vertex of the "V" shape. The first notch R1 removes the material across the fold line 81 so as to subtract the protrusion of the fold line 81 immediately adjacent to the free edge of the second side panel 20. The first notch R1 provides a cut edge of the third fold line 81.

With respect to the folding line 23, the folding line 81 is arranged in a staggered manner. With respect to at least one of the fold lines 83, 85, 87, the fold line 81 may also be arranged in a staggered manner.

The bending structure FS3 can bend or deform a part of the second side panel 20 (and according to the optional second corner panel 22) around an end of the most end adjacent to the article B, In order to bring the free edge of the part closer to the last item B. The bending structure FS3 slows the rigidity of the outer or end region of the part, so that the bending structure FS3 is easily deformed immediately. In this way, during loading or carrying of the shopping bag, the possibility of a lower corner of the carton 90 placed in the shopping bag piercing the wall surface of the shopping bag can be reduced. Therefore, it is possible to reduce the practice of placing a first shopping bag in a second shopping bag and manufacturing a "double bag" with two layers of walls.

The bending structure FS3 may include a second notch or notch R2 pressed from the longitudinal or free side edge of the blank 10. In the embodiment of FIG. 2, the second recess R2 is substantially triangular so as to define a “V”-shaped free edge portion. The second recess R2 breaks off or defines an end point of the folding line 23 connecting the second bottom plate 24 to the second corner plate 22. The fold line 23 extends substantially toward the vertex of the "V" shape. The folding line 23 can terminate or be close to the vertex of the "V" shape. The second notch R2 removes the material across the fold line 23 so as to subtract the protrusion of the fold line 23 immediately adjacent to the free edge of the blank 10. The second notch R2 provides a cut edge of the folding line 23.

The heel aperture A3 includes a third notch or notch R3. The third recess R3 may be regarded as being integral with the heel opening A3 or an extension of the heel opening A3. The third recess R3 defines a free edge portion of the heel opening A3 which is substantially "U" shaped. The fold line 81 extends substantially toward the bottom of the "U" shape. The fold line 81 may terminate or be close to the bottom of the "U" shape. The third notch R3 removes material across the fold line 81.

The fold line 81 extends substantially between the first notch R1 and the third notch R3.

The third recess R3 may be regarded as an extension forming the heel opening A3.

The heel opening A3 and the heel tongue 42 form an opening for engaging a bottom receiving member of an article. The opening includes at least one extension formed with a third recess R3. The third recess R3 opens toward the perimeter of the heel opening A3.

The opening may be generally circular. In other embodiments, the shape of the opening may be a square circle, a truncated circle or a round square. In other embodiments, the shape of the opening may substantially adopt other shapes, such as but not limited to an oval, ellipse, trapezoid, or rectangle.

With respect to a first imaginary line N1 extending across the middle of the opening, the third recess R3 is arranged to deviate therefrom. The first virtual line N1 is substantially perpendicular to the folding line 23. The third notch R3 is set closer to a free end edge of the second side plate 20 than the first imaginary line N1, that is to say, the third notch R3 is provided at the free end edge of the second side plate 20 And the first imaginary line N1.

The third recess R3 is set so as to be located on a second imaginary line N2 passing through a center C of the opening and an end edge of the second side plate 20. With respect to the first imaginary line N1, the second imaginary line N2 is in a split arrangement, and the first and second imaginary lines N1, N2 branch toward the top plate piece 18 (when the first and second imaginary lines When the lines N1 and N2 are close to the base plate 24, they meet.) The first and second imaginary lines N1, N2 define a first angle θ ₁ therebetween. Optionally, the first angle θ ₁ is an acute angle. Optionally, the first angle θ _{1 is} less than 65 degrees. The first angle θ ₁ may be in the range of 0 degrees to 65 degrees (0°<𝜃 ₁ ≤65°). In some embodiments, the first angle θ _{1 is} in the range of 20 degrees to 45 degrees (20 °≤𝜃 ₁ ≤45°). The second imaginary line N2 crosses the third notch R3 and crosses the bottom of the "U" shape, the deepest end or edge of the third notch R3 extends; and this is the farthest from the center C of the opening point.

The folding line 81 extends substantially from the third recess R3 to the abutting end edge of the second side panel 20 that forms an end edge of the carton 90.

The folding line 81 extends along the second imaginary line N2.

The first notch R1 is defined at the intersection of the second imaginary fold line N2 and the adjacent end edge of the carton 90.

The top plate 18 may include an optional handle structure H. The handle structure H includes a pair of bendable finger guard wings 52. The finger guard fins 52 are separated from each other. The finger guard fins 52 are hinged to the top plate 18 by a folding line 53, and a part is defined by a cutting line or cutting line 51. A first piece of the finger guard fins 52 is hinged to the top plate 18 from the opposite of a second piece of the finger guard fins 52.

The top plate 18 may include a detachable portion D in the form of a tear strip. The detachable portion D is defined by a first tearing or cutting line 62a and a second tearing or cutting line 62b. The first and second cutting lines 62a, 62b extend substantially longitudinally across the top plate piece 18. The second cutting line 62b is laterally spaced from the first cutting line 62a. An unsealing device formed by a pull tab 60a, 60b may be provided at one end of the tear strip. The pull tab 60a is hinged to the tear strip using a fold line 61a, and a portion can be defined by a weakened line that is easier to tear than the first and second cutting lines 62a, 62b, that is, the The tear resistance of the isoweakening line is weaker than that of the first and second cutting lines 62a and 62b.

When the detachable part D is removed, the contents of the carton 90, that is, the article B can be easily obtained.

Each end of the green sheet 10 includes an end fixing structure, so that when the green sheet 10 is erected into the carton 90, the contents of the carton 90 can be prevented from falling out of the carton 90.

Each end fixing structure includes an anchor portion 26a, 26b, 32a, 32b hinged to the adjacent side panels 16, 20 along the fold lines 25a, 25b, 39a, 39b. Each end fixing structure includes a web portion 28a, 28b, 30a, 30b hinged to the anchor portions 26a, 26b, 32a, 32b along the folding lines 27a, 27b, 35a, 35b. The web portions 30a, 30b, 32a, and 32b are hinged to the top plate piece 18 by folding lines 31a, 31b, 33a, and 33b.

An optional aperture A4 can be formed from a part of the top plate 18, a part of the first or second side plates 16, 20, and a part of the end fixing structures. The aperture A4 defines a fold line 17, 25a, 27a, 31a; 17, 25b, 27b, 31b; 19, 33a, 35a, 39a; 19, 33b, 35a, 39b one terminal, and located in the fold line 17, 19; 29a, 29b, 35a, 35b; 31a, 31b, 33a, 33b; 27a, 27b, 37a, 37b; 25a, 35b, 39a, 39b at an apex and set at an imaginary meeting point of the folding line .

Alternatively, the folding lines 27a, 27b, 35a, and 35b can be cut off by the cutting lines 29a, 29b, 37a, and 37b, respectively. The cutting lines 29a, 29b, 37a, 37b may be substantially U-shaped so as to define a piece of fin pressed from the corresponding web portions 28a, 28b, 30a, 30b; The corresponding web portions 28a, 28b, 30a, and 30b are integrated.

The bending of the end fixing structures is completed while the carton 90 is erected. The anchoring portions 26a, 26b, 32a, 32b are bent approximately 180 degrees to form a veneer relationship with the inner surfaces of the adjacent side plates 16, 20 to form a top joint structure from each end fixing structure. When a certain packaged article B is pressed against the adjacent side panel pieces 16, 20, the anchor portions 26a, 26b, 32a, 32b will remain in the bent position. After bending, the anchoring portions 26a, 26b, 32a, 32b will cause the web portions 28a, 28b, 30a, 30b to bend outwardly around the fold line 27a, 27b, 35a, 35b, so the web The parts 28a, 28b, 30a, 30b extend outward from the folding line 27a, 27b, 35a, 35b along the side wall of the packaged article B. At the same time, this also causes the web portions 28a, 28b, 30a, 30b to extend around the item B from the fold line 27a, 27b, 35a, 35b to its hinged connection to the fold line 31a, 31b, 33a, 33b respectively顶板片18. The top joining structure completed in this way is shown in FIG. 3, in which it is shown that the structure tightly joins the top of an endmost article B.

Turning now to the production of the carton 90 shown in FIG. 3, the carton 90 can be formed on a linear machine using a series of sequential bending operations so that the carton 90 can be completed without turning or turning Production. The bending process is not limited to those described below, and can be modified according to specific manufacturing needs.

First gather a group of items B; in the embodiment of Figure 3. Six items are arranged in a 2 x 3 array. Next, the top plate piece 18 of the blank piece 10 is placed on the group of articles B to become a top wall 18 of the carton 90.

Relative to the top plate piece 18, the first and second side plate pieces 16, 20 are respectively folded along the fold lines 17, 19 around the opposite sides of the group of article B so that they are located in the pair of article B pairs To the vicinity of both sides, for forming the first and second side wall panels 16, 20 of the carton 90.

With respect to the top plate piece 18, the anchor portions 26a, 26b, 32a, 32b can be bent substantially in the same manner as described above by bending the first and second side plate pieces 16, 20 to form the top joint structure Folded into a veneer relationship with the corresponding first or second side plates 16, 20.

Alternatively, the top joint structure may be formed after the carton 90 is erected into a tubular form. The anchoring portions 26a, 26b, 32a, 32b can be tucked between the corresponding one of the first and second side panels 16, 20 hinged thereto and an adjacent placed article B.

Let the first and second corner plates 14, 22 be bent from the corresponding first or second side plates 16, 20 around the fold lines 15, 21 to the adjacent placed article B Wait for the heel or lower part.

Before bending the first and second corner plates 14, 22 from the corresponding one of the first and second side walls 16, 20, the heel tongue 42 can be wrapped around the fold line 43 Bent out from the planes of the first and second corner plates 14, 22.

In some embodiments, the first and second sole sheets 12, 24 are bent outwards so that the heel tongue 42 extends inwardly below the article group to engage the articles B One piece, and the first and second bottom plates 12, 24 are bent in the opposite direction under the bottom of the article group.

The first bottom sheet 12 is bent around the folding line 13 so that it abuts the bottom of the group of items B, and then, the second bottom sheet 24 is bent around the folding line 23 so that it makes contact with the first A bottom plate 12 forms an at least partially overlapping relationship; in doing so, the heel blades 42 can be made to engage with a bottom of a corresponding article B, respectively.

The first and second bottom plate pieces 12, 24 are fixed together. Next, the tabs M are each displaced inward from the plane of the second bottom plate 24. Therefore, each of the female tongue pieces F will be displaced inwardly to produce a corresponding opening in the first bottom plate piece 12. Thus, the male tongue pieces M are accommodated in a corresponding opening, so that the first and second bottom plate pieces 12, 24 are locked together. In this way, a tubular structure is formed around the group of articles B.

Figure 2 shows the assembled carton 90. 4A, 4B, and 4C show a close-up of the bent structures FS1, FS2, FS3, FS4 of the erected carton 90.

4A shows the configuration of the bent structures FS1, FS2, FS3, and FS4 in an original or initial position of the bent structures FS1, FS2, FS3, and FS4 in an unbent or undeformed state.

The release tab 82/84 includes a first upper portion 82 that is substantially coplanar with the second side panel 20 and the upper portion 80 of the corner flap 80/86.

The release tab 82/84 includes a second lower portion 84 that is substantially coplanar with the second corner panel 22. The fold line 85 is substantially coplanar with the fold line 23 that hinges the second corner panel 22 to the second side panel 20.

4B and 4C show a second unfolded configuration of the bent structures FS1, FS2, FS3, and FS4 in a bent or deformed state. In FIG. 4B, a load force or force is applied to the upper portion 80 of the corner flap 80/86 in the arrow direction D1 shown. In FIG. 4C, a load stress or force is applied to the release tab 82/84 in the direction of the arrow D2 shown. The bending structures FS1, FS2, FS3, and FS4 can be folded or deformed by an external force or force. For example, the bending structures FS1, FS2, FS3, and FS4 can come into contact with a wall surface of a shopping bag. The wall surface exerts a force on the carton 90 on the bending structures FS1, FS2, FS3, and FS4. The release fins 82/84 are displaced inwards by applying force in an appropriate direction.

The release tab 82/84 is bent around the last item B to bring it closer. As such, the lower corners of the carton 90 are round, tapered, or chamfered. This design can help reduce the possibility of the carton 90 piercing the shopping bag. And by the wall surface of the shopping bag contacting a larger area or area of the carton 90, the pressure is applied to the bag because the load force is distributed over a larger area. Due to the deformation of the carton 90, the wall surface of the shopping bag can contact the last items B in the carton.

Turning now to an alternative embodiment of the invention shown in FIG. 5. In this alternative embodiment, although the prefix "100" is added to indicate that these features belong to the second embodiment respectively, the same numbers are used to indicate the same parts when possible. This alternative embodiment shares many of the same features as the embodiments of FIGS. 1 to 4C, so only the differences of the embodiments shown in FIGS. 1 to 4C will be described in more detail.

The one shown in FIG. 5 is based on a blank 110 in the second embodiment. The blank piece 110 includes a plurality of main plate pieces 112, 114, 116, 118, 120, 122, 124 for forming a tubular structure. The main board pieces 112, 114, 116, 118, 120, 122, 124 include: a first bottom plate piece 112, a first corner plate piece 114, a first side plate piece 116, a top plate piece 118, and a second side plate The sheet 120, a second corner plate 122 and a second bottom plate 124. The main board pieces 112, 114, 116, 118, 120, 122, 124 can be set to be hinged from one piece to the next piece in a straight line using corresponding folding lines 113, 115, 117, 119, 121, and 123.

The green sheet 110 includes several bending structures FS1, FS2, FS3, and FS4. FIG. 5 is an enlarged view of one of the bending structures FS3. The bending structures FS1, FS2, FS3, and FS4 are substantially similar in structure, and their description will refer to the bending structure FS3 in an enlarged view. The bending structure FS3 is defined by a part of the second side plate 120, a part of the selected second corner plate 122 and the second bottom plate 124.

The bending structure FS3 includes a release structure formed by a portion of the second side panel 120 and a portion of the second corner panel 122. In the embodiment, the first or second corner plates 114 and 122 are omitted, and a part of the release structure may be formed by the second side plate 120 and another part is formed by the second bottom plate 124.

The release structure includes a first folding line 187 provided on the second corner plate 122. The release structure includes a cutting line or severable line 193.

With respect to the cuttable line 193, the first folding line 187 is arranged in a split manner.

The cutting line 193 may extend from a first end of the first folding line 187 toward the top plate 118. The cutting line 193 may be substantially parallel to an adjacent portion of the longitudinal or free side edge of the green sheet 10.

In the embodiment of FIG. 5, the folding lines 83 and 85 in the previous embodiment of FIG. 2 have been omitted. In other embodiments, the first folding line 187 has also been omitted. In alternative embodiments, the release structure may include one or more fold lines 83, 85, 87 in the embodiment of FIG. 2 with or without the combination of the cutting line 93. For example, but not limited to these examples, the release structure includes the folding line 83, the folding line 87, and the cutting line 93 or only the folding line 87 and the cutting line 93.

Each or all heel openings A3 provided in the green sheet 110 include a release or expansion device. The expansion device provides a tearing function for reducing the possibility of tear propagation caused by physical impact or external force acting on a carton or its items.

The expansion device takes the form of at least one notch R3, R4. The illustrated embodiment includes a pair of notches R3, R4.

The heel openings A3 each include a third cut or notch R3. The third recesses R3 may be regarded as being integral with the heel openings A3 or an extension of the heel openings A3. The third recesses R3 define a free edge portion of the heel opening A3 which is substantially "U" shaped.

The third recesses R3 form an extension of the heel opening A3.

The heel openings A3 each include a fourth cut or notch R4. The fourth recesses R4 can be regarded as being integral with the heel openings A3 or an extension of the heel openings A3. The fourth recesses R4 define a substantially free edge portion of the heel opening A3 of a "U" shape.

The fourth recess R4 can be regarded as an extension forming the heel opening A3.

The heel opening A3 and the heel tongue 142 form an opening for engaging a bottom receiving member of an article B. The opening includes at least one extension formed with third and fourth recesses R3, R4. The third recess R3 opens toward the perimeter of the heel opening A3. The fourth recess R4 opens toward the perimeter of the heel opening A3.

The opening may be generally circular. In other embodiments, the shape of the opening may be a square circle, a truncated circle or a round square. In other embodiments, the shape of the opening may substantially adopt other shapes, such as but not limited to an oval, ellipse, trapezoid, or rectangle.

With respect to a first imaginary line N1 extending across the middle of the opening, the third recess R3 is arranged to deviate therefrom. The first virtual line N1 is substantially perpendicular to the folding line 123.

With respect to a first imaginary line N1 extending across the middle of the opening, the fourth notch R4 is arranged to deviate therefrom.

One of the third or fourth notches R3, R4 is set closer to a free end edge of the second side plate 120 than the first imaginary line N1, that is, the notches R3, R4 are provided at the Between the free end edge of the second side plate 120 and the first imaginary line N1.

The third recess R3 is set so as to be located on a second imaginary line N2 passing through a center C of the opening and an end edge of the second side plate 120, as shown in FIG. 5. With respect to the first imaginary line N1, the second imaginary line N2 is in a split arrangement, and the first and second imaginary lines N1, N2 branch toward the top plate 118 (when the first and second imaginary lines When the lines N1 and N2 approach the base plate 124, they meet. The first and second imaginary lines N1, N2 define a first angle θ ₁ therebetween. Optionally, the first angle θ ₁ is an acute angle. Optionally, the first angle θ _{1 is} less than 65 degrees. The first angle θ ₁ may be in the range of 0 degrees to 65 degrees (0°<𝜃 ₁ ≤65°). In some embodiments, the first angle θ1 is in the range of 20 degrees to 45 degrees (20° ≤𝜃 ₁ ≤45°). The second imaginary line N2 crosses the third notch R3 and crosses the bottom of the "U" shape, the deepest end or edge of the third notch R3 extends; and this is the farthest from the center C of the opening Point.

The third recess R3 is set so as to be located on a fifth imaginary line N5 passing through a center C of the opening. With respect to the first imaginary line N1, the fifth imaginary line N5 is in a split arrangement, and the first and fifth imaginary lines N1, N5 diverge toward the top plate piece 118. With respect to the second imaginary line N2, the fifth imaginary line N5 is a split arrangement. The first and fifth imaginary lines N1, N5 define a third angle θ ₃ therebetween. Optionally, the third angle θ ₃ is an acute angle. Optionally, the third angle θ _{3 is} less than 65 degrees. The third angle θ ₃ may be in the range of 0 degrees to 65 degrees (0°<𝜃 ₃ ≤65°). In some embodiments, the third angle θ _{3 is} in the range of 20 degrees to 45 degrees (20 °≤𝜃 ₃ ≤45°).

The fifth imaginary line N5 crosses the fourth notch R4 and crosses the bottom of the "U" shape, the deepest end or edge of the fourth notch R4 extends; and this is the farthest from the center C of the opening Point.

The third angle θ ₃ may be substantially equal to the first angle θ ₁ (θ ₁ ≅θ ₃ ). In such an embodiment, the opening may be substantially symmetrical about the first imaginary line N1.

Turning to the openings defined by the last heel opening A3 and a heel tongue 142 opposite thereto, an adjacent of the folding structure FS1, FS2, FS3, FS4 of the folding line 181 is substantially The bottom of the "U" shape of the third recess R3 extends in alignment. The folding line 181 may terminate or be close to the bottom of the "U" shape of the third recess R3.

The third notch R3 removes material across the fold line 181.

The fold line 181 extends substantially between the first notch R1 and the third notch R3.

The fold line 181 extends substantially from the third recess R3 to the adjacent end edges of the first or second side plates 116, 120 forming one end edge of the carton.

The folding line 181 extends along the second imaginary line N2.

The first notch R1 is defined at the intersection of the second imaginary fold line N2 and the adjacent end edge of the carton 90.

The present invention provides a carton for packing article B.

The lower corner of the carton can include a deformable, bent structure that can deform or bend the lower corners to slow down the sharpness of the lower corners of the carton. When a load force is applied to it, the deformable, bending structure allows the lower corners to be easily bent to naturally become a circular arc.

The carton formed by the green sheet 10 may include a bottom receiving part. The feature includes an opening at least partially defined on a side wall of a wrap-around carton and at least one extension of the opening forming a recess and opening toward the perimeter of the opening. The shape of the opening may generally be circular and the notch is located at a position on the perimeter so that an imaginary line passing through a center of the opening and the deepest end of the notch and an adjacent end of the carton Fate intersects.

The extension of the opening can form an expansion device that can withstand the physical impact of the carton.

The extension of the opening can cooperate with or cooperate with the deformable, bending structure to promote or contribute to the bending or deformation of the structure.

It should be understood that various changes can be made without departing from the scope of the present invention. For example, the sizes and shapes of the plates and orifices can be adjusted to match items of different sizes and shapes. The illustrated embodiment shows a carton or blank for forming a wrap-around article carrier; in other embodiments, the article carrier may take other alternative forms or styles and may use one or more of the disclosure Building blocks.

It should be understood that the terms used in this article, such as "top", "bottom", "front", "back", "end", "side", "inner", "outer", "upper" and "Lower" etc. do not necessarily limit the relevant plates to this orientation, but are only used to distinguish these plates.

The term "hinge" and "fold line" as used herein refer to the hinged parts that define the green sheet or the sheet substrate, so that the parts of the green sheet or the sheet substrate are easily bent relative to each other, or refer to the green sheet or Various lines of appropriate bending positions of the plates to which the sheet substrate belongs. Any reference to "hinge" should not be construed as necessarily limited to a single fold line; in fact, the hinge can be formed by two or more fold lines. In other words, the hinge portion may be composed of two or more types of folding lines each having a linear shape or a curved shape. If the hinge portion is formed by a linear fold line, they can be set parallel to each other or slightly maintained at an angle. In addition, if the hinge part is formed by a curved fold line, it can intersect each other and define a molding sheet in the area surrounded by the curved fold lines. In addition, the hinge portion may be composed of one or more straight fold lines and one or more curved fold lines. A typical example of such a hinge may include a pair of arched or arcuate fold lines that intersect at two points so that an elliptical plate is defined between each other.

As used herein, "folding line" may refer to one of the following: score lines, convex lines, concave lines, perforations in a row, short seams in a row, half cuts in a row, single half cuts, intermittent cuts that do not violate the scope of the invention Line, a row of aligned slits, a row of short scores, and any combination of the foregoing.

It should also be understood that each of the hinge portion, the cutting line, and the folding line may include elements formed on the sheet substrate of the green sheet, such as perforations, a row of perforations, a row of short slits, a row of half cuts, A single half-cut, cutting line, intermittent cutting line, crack, score, and any combination thereof. These elements can be sized and configured according to the intended function. For example, a row of perforations can be sized and designed to have a degree of weakness that can define fold lines and/or cut lines. In addition, the perforations in this row can be designed as fold lines that are easy to bend and resistant to breakage, weakened fold lines that are easy to bend and use more force, that is, easy to break, or cut lines that are easy to break with a little force.

As used herein, "alignment" refers to aligning two or more components in an upright carton, such as aligning the opening formed in the first piece of the two laminated plates with the second hole formed in the second piece口aligned. The elements aligned with each other may be aligned with each other toward the thickness direction of the laminated plates. For example, when the orifice on the first plate is set to "align" with the second orifice on the second plate overlapping the plate, the edge may be along at least part of the second orifice The edge extends and can be aligned with the second aperture in the thickness direction of the first and second plates.

10, 110: blank piece 12, 112: first bottom plate piece 14, 114: first corner plate piece 16, 116: first side plate piece 18, 118: top plate piece 20, 120: second side plate piece 22, 122: No. Two corner plates 24, 124: second base plates 13, 15, 17, 19, 21, 23, 25a, 25b, 27a, 27b, 31a, 31b, 33a, 33b, 35a, 35b, 39a, 39b, 43, 45a , 45b, 53, 61a, 81, 83, 85, 87, 113, 115, 117, 119, 121, 123, 181, 187: fold line 15a, 21a: first part 15b, 21b: second part 13a, 13b, 17a, 17b, 19a, 19b, 23a, 23b, 29a, 29b, 37a, 37b, 51, 62a, 62b, 93, 95, 193: cutting line or cutting line 26a, 26b, 32a, 32b: anchor portion 28a, 28b, 30a, 30b: web 42, 142: heel tongue 52: finger guard flap 60a, 60b: pull tab 80, 86: corner flap 82, 84: release flap 90: carton A1, A2 , A3, A4: Orifice B: Item C: Center D: Removable part D1, D2: Arrow direction F: Tongue piece FS1, FS2, FS3, FS4: Bending structure G1, G2: Damping setting H: Handle Structure M: tongue piece N: heel joint structure N1, N2, N3, N4, N5: imaginary line R1, R2, R3, R4: notch θ ₁ , θ ₂ , θ ₃ : angle

The embodiments are now listed in conjunction with the drawings, and the present invention will be described in detail below. Among them: FIG. 1 is a top plan view of a blank for forming a carton according to the first embodiment; FIG. 2 is an enlarged view of a part of the embryo chip shown in FIG. 1; 3 is a perspective view of the carton formed by the green sheets shown in FIG. 1; 4A is a side view of a bottom end of the carton shown in FIG. 3, showing a first deformable corner area in an unfolded state; 4B is a side view of a bottom end portion of the carton shown in FIG. 3, showing a first deformable corner area in a first folded or deformed state; 4C is a side view of a bottom end of the carton shown in FIG. 3, showing a first deformable corner area in a second folded or deformed state; and FIG. 5 is a top plan view of a blank for forming a carton according to the second embodiment, with an enlarged view of a deformable corner area inserted.

20: second side plate

22: Second corner plate

24: second backplane piece

23, 43, 45a, 45b, 81, 83, 85, 87: folding line

21a: Part One

93, 95: cutting line or cutting line

42: Heel tongue

80, 86: corner flaps

82, 84: release wings

A3: Orifice

C: Center

FS3: Bending structure

N: Heel joint structure

N1, N2, N3, N4: imaginary line

R1, R2, R3: notch

θ ₁ , θ ₂ : angle

Claims (20)

An article heel engaging member in a carton having a side wall, the article heel engaging member includes: An opening at least partially defined in the side wall of the carton; and At least one extension of the opening forms a first notch; Wherein the first notch includes a proximal end opening toward the perimeter of the opening, the opening is generally circular and includes a center, the first notch is located at a position on the perimeter of the opening, to A first imaginary line that passes through the center of the opening and across a distal end of the first notch intersects an adjacent end edge of the carton. The heel joint part of an article as described in item 1 of the scope of the patent application, wherein the at least one extension of the opening includes a second notch, the second notch includes an opening toward the perimeter of the opening At the proximal end, the first notch is located on a first side of a second imaginary line and is located at a position on the perimeter of the opening, the second imaginary line passes through the center of the opening and from a The first fold line extends vertically, and wherein the second notch is located on a second opposite side of the second imaginary line and is located at a position on the perimeter of the opening. A carton for packaging one or more items, the carton includes a plurality of wall panels, the wall panels including a top wall, a first side wall, a second side wall, and hinged to the first side wall using a first folding line A first bottom wall, wherein the carton includes a heel opening for receiving a heel of an article, the heel opening is pressed from at least the first side wall, the heel opening includes at least one forming a first An extension of the notch; wherein the first notch includes a proximal end opening toward the perimeter of the heel opening, the heel opening is generally circular and includes a center, the first notch is located on the heel At a location of the perimeter of the opening so that a first imaginary line that passes through the center of the heel opening and across a distal end of the first recess intersects an adjacent end edge of the carton. The carton as described in item 3 of the patent application scope, wherein the at least one extension of the heel opening includes a second notch, the second notch includes a opening toward the perimeter of the heel opening At the proximal end, the first notch is located on a first side of a second imaginary line and is located at a position on the perimeter of the heel opening, the second imaginary line passing through the center of the heel opening It extends vertically from a first folding line, and wherein the second notch is located on a second opposite side of the second imaginary line and is located at a position on the perimeter of the heel opening. The carton as described in item 3 of the patent application scope includes a deformable structure defined on the first side wall between the heel opening and the adjacent end edge of the carton. The carton as described in item 5 of the patent application scope, wherein the deformable structure includes a second fold line extending from the first recess to the abutting end edge of the carton. The carton as described in item 5 of the patent application scope, wherein the second folding line extends along the first imaginary line. The carton as described in item 5 of the patent application scope, wherein a third notch is defined at the intersection of the first imaginary line and the adjacent end edge of the carton. The carton as described in item 5 of the patent application scope, wherein the deformable structure further includes a cutting line that is generally perpendicular to the first folding line. The carton according to item 5 of the patent application scope, wherein the deformable structure further includes a release structure including at least one third folding line provided between the cutting line and the adjacent end edge of the carton. An article heel engaging member in a carton having a first sheet and a second sheet hinged to itself with a first hinge, the article heel engaging member includes: An opening at least partially defined on the first sheet of the carton; and At least one extension of the opening forms a first notch; Wherein the first notch includes a proximal end opening towards the perimeter of the opening; Where the opening includes a center, a first imaginary line crosses the center of the opening and extends perpendicularly from the first hinge, the first notch is located at a position on the perimeter of the opening so that a A second imaginary line passing through the center of the opening and over a distal end of the first notch defines an acute angle therebetween. An article heel engaging member as described in item 11 of the patent application range, wherein the at least one extension of the opening includes a second notch, the second notch includes an opening toward the perimeter of the opening At the proximal end, the first notch is located at a position on the perimeter of the opening on a first side of the first imaginary line, and the second notch is located at a second pair of the first imaginary line At a position of the perimeter of the opening laterally. An article heel engaging member as described in item 11 of the patent application range, wherein the at least one extension of the opening includes a second notch, the second notch includes an opening toward the perimeter of the opening At the proximal end, the second notch is located at a position on the perimeter of the opening so that a third imaginary line that passes through the center of the opening and across a distal end of the second notch is defined therebetween An acute angle. A carton for packaging one or more items, the carton includes a plurality of wall panels, the wall panels including a top wall, a first side wall, a second side wall, and hinged to the first side wall using a first folding line A first bottom wall, wherein the carton includes a heel opening for receiving a heel of an article, the heel opening is at least pressed from the first side wall, and the heel opening includes at least one forming a notch Of the extension, wherein the notch includes a proximal end opening toward the perimeter of the heel opening; wherein the heel opening includes a center, a first imaginary line from the first side wall and an adjacent wall A hinge extending vertically across the center of the opening extends vertically, and the notch is located at a position on the perimeter of the heel opening so that a piece passing through the center of the heel opening and over the notch A distal second imaginary line defines an acute angle in between. The carton according to item 14 of the patent application scope, wherein the carton includes a deformable structure defined at least in part on the first side wall and provided between the heel opening and a free end edge of the carton, the deformable The structure includes a flap defined by a portion of the first folding line and a second folding line, the second folding line lying upon the second imaginary line. The carton as described in item 15 of the patent application scope, wherein the deformable structure includes a release structure including a third folding line and a cutting line extending from one end of the third folding line. The carton according to item 15 of the patent application scope, wherein the cutting line extends substantially perpendicular to the first folding line with respect to the first folding line. The carton as described in item 14 of the patent application scope, wherein the first side wall includes a fourth fold line extending longitudinally across the first side wall to define a slant plate. The carton as described in item 18 of the patent application scope, wherein a part of the heel opening is defined from the slant plate piece and a cutting line cuts off the fourth folding line so that the heel opening opens from the fourth The fold lines are spaced apart. A green sheet for forming a carton, the green sheet includes a plurality of plates, the plates include a top plate, a first side plate, a second side plate and a first folding line hinged to the first A first bottom panel of the side panel, wherein the green sheet includes a heel opening for receiving a heel of an article, the heel opening may be pressed from at least the first side panel, the heel opening includes at least An extension forming a notch; wherein the notch includes a proximal end opening toward the perimeter of the heel opening, wherein the heel opening is generally circular and includes a center, the notch is located at the opening At a location of the perimeter of the perimeter, such that an imaginary line passing through the center of the opening and a distal end across the notch intersects an adjacent end edge of the carton.

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