KR102574539B1 - blanks and cartons - Google Patents

Abstract

A blank (100) is disclosed comprising a first wall (112) and a second wall (114) coupled to at least the first wall via a first panel fold line, the first panel (112) holding an article therein. The article holding means 200 includes an article receiving opening 202 for accommodating a part of the article, and a concave support tab 204 provided to protrude toward the article receiving opening. wherein the base end of the concave support tab 204 is connected to the first wall through a tab fold line 206, and the width W2 of the base end of the concave support tab 204 is the concave portion. It is equal to or smaller than the maximum width W1 of the secondary support tab.

Description

blanks and cartons

The present invention relates to blanks and cartons formed from the blanks, and more particularly to blanks and cartons suitable for packaging a plurality of articles and containing them as a group.

Conventionally, cartons made of cardboard or the like are often used to collectively house items such as cans and collectively store, transport, and sell these items.

Such cartons generally include a ceiling wall, a pair of side walls connected at either end of the ceiling wall, and a bottom wall connected to the pair of side walls, the carton having a tubular shape so that the articles to be packaged may be placed inside the carton. is formed by Also, both ends of the carton are open ends.

One example of items packaged inside a carton is a plurality of cans. For example, six cans may be arranged in a 2x3 configuration inside a regular carton, with the carton enclosing the tops, perimeter walls, and bottoms of the cans.

These cartons are suitable for saving blank material. However, since both ends of the carton are open ends, such cartons must have article holding means to properly hold the articles to be packaged inside the carton.

This article holding means may be formed by a recessed support tab or by an article receiving opening and a recessed supporting tab protruding toward the article receiving opening. These concave portion support tabs are generally formed to have a substantially rectangular shape, and the width of the concave portion support tab is constant as shown in Japanese Unexamined Patent Application, Laid-Open Patent Publication No. S59-062464 and Japanese Patent No. 4373285. . Additionally, in order for the recess support tabs to engage the recesses in the top or bottom of the can, the recess support tabs must be pushed into the recesses in the top and bottom of the can after the carton is placed on top of the can.

Further, since a predetermined space is created between the concave portion supporting tab and the edge portion of the article accommodating opening, the edge portion of the concave portion supporting tab is, as shown in Japanese Patent No. 4505061, the edge portion of the article accommodating opening. distanced from Therefore, when punching the blank to form the article receiving openings, it is necessary to remove the small pieces formed between the concave portion support tab and the article receiving opening. Each of these small pieces has a wedge shape that tapers towards the connecting end of the recess support tab.

However, in the concave support tab having a substantially rectangular shape as in the prior art, the surface area in contact with the inner circumferential surface of the concave portion of the upper end or lower end of the can is small, and the strength to withstand falling off from the carton is reduced, so that each can It is likely to fall off the inside of this carton.

Further, when a blank comprising concave support tabs having a substantially rectangular shape as in the prior art is applied to articles such as cans, each of the concave support tabs, after the carton is overlaid on the can, is applied to the upper end of the can. Or it is pushed into each of the concave portions of the lower end. Therefore, it takes a long time to engage the concave portion support tab with the concave portions of the upper or lower portion of the candle in the packaging process.

Further, in the prior art, the small piece to be removed has a wedge shape formed between the concave support tab and the article receiving opening and tapering toward the connecting end of the concave support tab. Therefore, the small pieces are easy to adhere to the blank in the punching process, and it is not easy to remove these small pieces from the blank.

The present invention has been made in view of the problems of the prior art described above. Accordingly, an object of the present invention is to provide a blank capable of forming a package that is difficult to remove from a can, and preferably a blank capable of forming a package that is difficult to remove from a can, easy to mount on a can, and easy to produce. is to do

According to a first aspect of the invention, a blank comprises a first wall and a second wall connected to at least said first wall via a first panel fold line. The first panel has article holding means for holding an article, the article holding means including an article receiving opening for receiving a part of the article, and a concave support tab provided to protrude toward the article receiving opening. The base end of the recess support tab is connected to the first wall through a tab fold line, and the width W2 of the base end of the recess support tab is equal to or equal to the maximum width W1 of the recess support tab. smaller

Preferably, in the blank, a boundary between at least one side of the concave support tab and an edge portion of the article accommodating opening is formed with a slit, and the slit extends from one end of the tab fold line to the concave support tab. extends to the free end of

Preferably, in the blank, the width of the concave support tab gradually decreases from a portion having the maximum width toward the base end.

Preferably, in the blank, the one side portion is adjacent to the edge portion of the article receiving opening.

Preferably, in the blank, an end of the slit on a side adjacent to the one end of the tab folding line extends to a position dividing the tab folding line and the first panel folding line, and One side forms a foldable ear portion relative to the remaining portion of the recess support tab by the slit.

Preferably, in the blank, the foldable ear portion is connected to the concave portion support tab through an ear portion fold line.

Preferably, in the blank, the end of the slit is curved toward the tab fold line.

According to a second aspect of the present invention there is provided a carton having a recess in at least one end and accommodating articles having a substantially cylindrical shape, said carton having at least said first through a first wall and a first panel fold line. and a second wall connected to the wall. The first panel has article holding means for holding the article, the article holding means including an article receiving opening for receiving a part of the article, and a concave support tab provided to protrude toward the article receiving opening. The base end of the recess support tab is connected to the first wall through a tab fold line, and the width W2 of the base end of the recess support tab is equal to or equal to the maximum width W1 of the recess support tab. smaller

Preferably, in the carton, a boundary between at least one side of the concave support tab and an edge portion of the article receiving opening is formed with a slit, the slit extending from one end of the tab fold line to the concave support tab. extends to the free end of

Preferably, in the carton, the width of the recess support tab gradually decreases from the portion having the maximum width toward the base end.

Preferably, in the carton, the one side is adjacent to the edge portion of the article receiving opening.

Preferably, in the carton, an end of the slit on a side adjacent to the one end of the tab fold line extends to a position dividing the tab fold line and the first panel fold line, and One side forms a foldable ear portion relative to the remaining portion of the recess support tab by the slit.

Preferably, in the carton, the foldable ear portion is connected to the recess support tab through an ear portion fold line.

Preferably, in the carton, the ends of the slits are curved toward the tab fold line.

The base end of the recess support tab is connected to the first sidewall through a tab fold line, and the width W2 of the base end of the recess support tab is equal to or smaller than the maximum width W1 of the recess support tab. Therefore, the surface area of the concave portion support tab contacting the inner circumferential wall of the concave portion at the upper end or lower end of the articles to be packaged, such as cans, increases, and thus the present invention provides an effect of stably holding the articles inside the carton. can

Further, in the present invention, the base end of the concave support tab is connected to the first sidewall through a tab folding line, and the width W2 of the base end of the concave support tab is the maximum width of the concave support tab ( equal to or smaller than W1). Thus, when assembling a carton from a blank having the shape described above, the first or second sidewall is temporarily folded outward so that each of the recess support tabs is positioned within a recess in the top or bottom of each can. Then, by folding the first side wall or the second side wall inward, the present invention can more quickly engage the inner circumferential wall at the upper or lower end of the items to be packaged, such as cans, during the packaging process, and thus the items to be packaged. can provide the effect that rapid packaging of can be performed.

Further, the base end of the concave support tab is connected to the first side wall through a tab folding line, and the width W2 of the base end of the concave support tab is equal to the maximum width W1 of the base end of the concave support tab. Since it is equal to or smaller than , there is no small piece to be removed (which may be attached blankly) between the concave support tab and the edge portion of the article receiving opening. Accordingly, the present invention can provide an effect that the portion corresponding to the article accommodation opening can be easily removed from the blank when the blank is punched to form the article accommodation opening.

1 is a plan view showing a blank according to a first embodiment of the present invention.
Fig. 2 is an enlarged view of a blank article holding means according to a first embodiment of the present invention.
3 is a perspective view of a carton assembled with blanks according to the first embodiment of the present invention.
4 is a perspective view of a package formed from a blank according to a first embodiment of the present invention, in which a plurality of cans are arranged inside a carton.
5 is a plan view showing a blank according to a second embodiment of the present invention.
6 is an enlarged view of an article holding means according to a second embodiment of the present invention.
7 is a perspective view of a carton assembled with blanks according to a second embodiment of the present invention.
8 is a perspective view of a package formed from a blank according to a second embodiment of the present invention, in which a plurality of cans are arranged inside a carton.

[First Embodiment]

Examples of blanks according to the present invention and cartons formed from the blanks will now be described with reference to FIGS. 1 to 4 . In the following description, in order to clarify the direction, the direction of reference sign "X" is used as a "first direction", and the direction of reference sign "Y" is a "second direction" orthogonal to the first direction X. .

1 is a plan view of a blank 100 according to a first embodiment of the present invention. 2 is an enlarged view of the article holding means 200 of the blank 100 according to the first embodiment of the present invention. 3 is a perspective view of a carton 300 in which a blank 100 according to the first embodiment of the present invention is assembled, and FIG. 4 is a perspective view showing scar formation inside a plurality of boxes of empty cans 100 and 170. A perspective view of a package 304 formed from a blank 100 according to the first embodiment of the present invention being disposed, with a plurality of cans 170 arranged inside a carton.

As shown in FIG. 1, the blank 100 has a substantially rectangular shape elongated as a whole in the first direction X, and the blank 100 is formed from cardboard or the like. By connecting both ends to each other in the first direction (X), a carton 300 having a tubular shape as shown in FIGS. 3 and 4 can be formed. Blank 100 may also be formed from other materials such as plastic.

Referring to FIG. 1 , the blank 100 has a substantially rectangular ceiling wall 110 at a substantially central portion in the first direction X. In the first direction (X), one side edge of the ceiling wall 110 is connected to the first side wall 112 through a first panel fold line 130, and the other side edge of the ceiling wall 110 is connected to the second panel. It is connected to the second side wall 114 via a fold line 132 . In the first direction X, the other side edge of the first side wall 112 opposite to the side edge connected to the ceiling wall 110 is connected to the first bottom inclined portion 116 via the third panel fold line 134. Connected. In addition, the other side edge of the second side wall 114 opposite to the side edge connected to the ceiling wall 110 is connected to the second bottom inclined portion 118 via the fourth panel fold line 136 . In addition, the other side edge of the first bottom inclined portion 116 opposite to the side edge connected to the first side wall 112 is connected to the first bottom wall 120 through the fifth panel fold line 138, The other side edge of the second bottom inclined portion 118 opposite to the side edge connected to the second side wall 114 is connected to the second bottom wall 122 via the sixth panel fold line 140 . Accordingly, the bottom wall 302 of the carton 300 is formed by joining the first bottom wall 120 and the second bottom wall 122 together.

A substantially central portion of the ceiling wall 110 is a pair of first folds 152 constituting an opening for transporting cartons, wherein one of the first folds 152 is formed via a fold line 154. connected to the ceiling wall 110, and second folds 158, wherein each of the second folds 158 is connected to each of the first folds 152 via a fold line. do. By inserting a user's finger into the opening for transporting the carton at the same time as folding the first folds 152 and the second folds 158 into the carton 300, a plurality of cans accommodated inside the carton ( 170) can be easily transported. In addition, the ceiling wall 110 is provided with a pair of break lines 156 extending from one end to the other end in the second direction Y, and a first folding portion between the pair of break lines 156. s 152 and second folds 158 are provided. Thereby, by holding one end edge between the pair of break lines 156 and pulling that end edge toward the other end edge, the user breaks the ceiling wall 110 and opens the package 304 to easily A plurality of cans 170 may be taken out. In this embodiment, the dimension of the ceiling wall 100 in the second direction Y corresponds to a dimension capable of covering the upper ends 172 of the three cans 170 when three cans are arranged side by side. The dimension of the ceiling wall 100 in the first direction X corresponds to a dimension capable of covering the upper ends 172 of the two cans 170 when the two cans 170 are arranged side by side. The can 170 has a substantially cylindrical shape and includes a circular top end 172, a circular bottom end 174, and a circumferential wall 176 extending between the top 172 and bottom ends 174. The upper end 172 is provided with a recess 178 that is substantially flat and is recessed into the can 170 . The lower end 174 is provided with a recess 180 substantially dome-shaped and recessed into the can 170 . Can 170 may be a beverage can or other purpose can such as, for example, a gas bottle can.

The dimensions of the first sidewall 112 and the second sidewall 114 in the first direction X are substantially equal to the height of each can 170 . In addition, the dimensions of the first sidewall 112 and the second sidewall 114 in the second direction (Y) are substantially the same as the dimensions of the ceiling wall 110 in the second direction (Y). Also, on the third panel fold line 134 between the first side wall 112 and the first bottom inclined portion 116 and the fourth panel between the second side wall 114 and the second bottom inclined portion 118 A plurality of first slits 190 are formed on the fold line 136, and the plurality of first slits 190 are formed in a direction perpendicular to the second direction Y (first direction X), that is, It extends in a direction perpendicular to the three-panel fold line 134 and the fourth panel fold line 136 .

As shown in FIGS. 1 and 2 , the first bottom inclined portion 116 is provided with three article holding means 200 . These article holding means 200 extend from the first bottom wall 120 toward the first side wall 112 and are arranged at regular intervals in the second direction Y. In addition, the second bottom inclined portion 118 is provided with three article holding means 200 . These article holding means 200 are arranged at regular intervals in the second direction Y from the second bottom wall 122 toward the second side wall 114 . Each of these article holding means 200 has an article receiving opening 202 having a substantially rectangular shape for accommodating a part of the lower end 174 of the can 170 and a concave formed to protrude toward the article receiving opening 202. A secondary support tab 204 is included.

As shown in FIGS. 1 and 2 , the article receiving opening 202 is directed from the first bottom inclined portion 116 toward the first sidewall 112 or from the second bottom inclined portion 118 toward the second sidewall 114 . ) extends towards The width of the article receiving opening 202 is in the first direction X, that is, from the first bottom inclined portion 116 toward the first side wall 112 or from the second bottom inclined portion 118 toward the second side wall 114. ) is formed to gradually increase toward In addition, the edge portion of the article accommodating opening 202 on one side of the first side wall 112 or the second side wall 114 is curved in an arc shape and protrudes toward the first side wall 112 or the second side wall 114. do.

Recess support tab 204 is connected to first bottom wall 120 or second bottom wall 122 via tab fold line 206 . Tab fold line 206 begins to extend from either fifth panel fold line 138 or sixth panel fold line 140 and ends at either fifth panel fold line 138 or sixth panel fold line 140. . These tab fold lines 206 are formed in an arc shape so as to protrude to the opposite side of the article receiving opening 202 . Also, the free end of the concave support tab 204 on the side of the article receiving opening 202 is formed in a straight line parallel to the second direction Y.

A boundary between both sides (or one side) of the concave support tab 204 and the edge portion of the article accommodating opening 202 adjacent thereto is formed by the second slit 208 . However, there is no substantial gap between both sides (or one side) of the concave support tab 204 and the edge portion of the article receiving opening 202, and both sides (or one side) of the concave support tab 204 and the article. The edge portions of the accommodating openings 202 are arranged adjacent to each other. A second slit 208 extends from one end of the tab fold line 206 toward the free end of the recess support tab 204 . In addition, the width of the concave support tab 204 formed from a part of the first bottom inclined portion 116 is in the direction from the first bottom wall 120 to the first side wall 112 along the first direction X. formed to gradually increase. In addition, the width of the concave support tab 204 formed from a part of the second bottom inclined portion 118 gradually increases from the second bottom wall 122 toward the second side wall 114 along the first direction X. is formed to That is, the base end of the concave support tab 204 connected to the first bottom wall 120 or the second bottom wall 122 has a width W2, and the concave support tab on the article accommodating opening 202 side ( The free end of 204 has a maximum width W1. Accordingly, the width W2 of the base end of the concave support tab 204 is less than or equal to the maximum width W1 of the concave support tab 204, and the concave support tab 204 is the width of the concave support tab 204. The width is formed so that it gradually decreases toward the base end of the concave portion support tab 204 from the portion having the maximum width W1.

The end 210 of the second slit 208 on the side adjacent to the first bottom wall 120 or the second bottom wall is bent toward the tab fold line 206, and the fifth panel fold line 138 or the second slit 208 is bent. It extends to a position where it divides the 6 panel fold line 140 and the tab fold line 206. With the second slit 208 having this end 210, both sides (or one side) of the recess support tab 204 are connected to the first or second bottom inclined portions 116, 118 and the first or second slit 208. 2 Can move freely from the constraints of the bottom walls (120, 122). Thereby, both sides of the recess support tab 204 form a collapsible ear portion 212 relative to the remaining portion of the recess support tab 204 . These ear portions 212 extend outward in the second direction Y from both sides of the recess support tab 204, so that when assembling the carton 300 from the blank 100, these ear portions 212 are recessed. The remainder of the secondary support tab 204 abuts the inner circumferential surface of the recess 180 of the lower end 174 of the can 170. Reference numeral '214' in FIG. 2 indicates a fold line of the ear. The ear fold line 214 foldably connects each of the ear portions 212 to the recess support tab 204 and may be formed, for example, with a slit or the like.

The ear portion fold line 214 extends in a direction substantially perpendicular to the fifth panel fold line 138 or the sixth panel fold line 140 (ie, in the first direction X). One end of the ear fold line 214 is provided adjacent the end 210 of the second slit 208 .

In addition, the recess support tab 204 includes a pair of fold lines 216 . Folding lines 216 are formed at both end corner portions of the concave portion support tab 204 such that each of the end corner portions of the concave portion support tab 204 is folded into a substantially triangular shape, and thus the substantially triangular shape. The phosphorus shape can fit into the shape of the inner circumferential surface of the concave portion 180 of the lower end 174 of the can 170 . The fold line 216 may be formed of a slit or the like, for example.

Referring to FIG. 1 , the second bottom wall 122 is provided with four connection tabs 230 having a "mushroom" shape, and these connection tabs 230 are arranged at regular intervals in the second direction Y. . Each of the connection tabs 230 is formed by a cutting line 232, and the connection portion of the connection tab 230 on the side of the second bottom inclined portion 118 connects to the second bottom wall 122 through the second folding line 234. connected to

also. The first bottom wall 120 is provided with four tab fitting openings 236 arranged at regular intervals in the second direction Y. The tab fitting opening 236 has a substantially rectangular shape and is formed by a substantially “U” shaped cutting line. Each of the tab fitting openings 236 is provided at a position corresponding to each of the connection tabs 230 .

When assembling the carton 300 from the blank 100, connect the first bottom wall 120 to the second bottom wall 122 by fitting each connecting tab 230 into each tab fitting opening 236 A bottom wall 302 of the carton 300 may be formed. The connecting means between the first bottom wall 120 and the second bottom wall 122 is not limited to this embodiment, and the end edges of the first bottom wall 120 and the second bottom wall 122 are formed by an adhesive material or the like. They can also be glued together.

In addition, both ends of the ceiling wall 110, the first side wall 112, the second side wall 114, the first bottom wall 120, and the second bottom wall 122 extending along the first direction X. Recessed portions 240 are respectively provided. As a result, protrusions 242 located between the depressions 240 are formed along both ends of the blank 100 extending in the first direction (X).

Protrusions 242 formed between the ceiling wall 110 and the first side wall 112 or the second side wall 114 provide article cover means 244 for holding a plurality of cans 170 inside the carton 300. make up Each of the article covering means 244 includes: a fold piece 248 connected to the first side wall 112 or the second side wall 114 via a third fold line 246 having a plurality of slits; web piece 252 connected to fold piece 248 via fourth fold line 250; a cover piece 256 connected to the web piece 252 via a fifth fold line 254 co-located with either the first panel fold line 130 or the second panel fold line 132; and a substantially diamond-shaped opening 260 for receiving a portion of the top end 172 of the can 170, wherein the fourth fold line 250 defines a slit projecting toward the web piece 252. The cover piece 256 is connected to the ceiling wall 110 via a sixth fold line 258.

When blank 100 is assembled into a carton, sixth fold line 250 is valley folded (outwardly folded), third fold line 246, fifth fold line 254, and sixth fold line ( 258 is acid folded (inwardly folded) so that the article covering means 244 can be three-dimensionally abutted to the top end 172 and top of the perimeter walls 176 of the can 170 housed inside the carton 300. . As a result, each of the cans 170 may be stably maintained inside the carton 300 .

Next, the procedure for assembling the carton 300 from the blank 100 shown in FIGS. 1 and 2 will be described.

First, each can 170 is arranged in two rows and three rows on the ceiling wall 110 of the blank 100 . Next, the fourth fold line 250 of the blank 100 is valley folded (outwardly folded), and the third fold line 246, the fifth fold line 254, and the sixth fold line 258 are The acid is folded (folded inward). Thereby, the inner surfaces of each lid piece 256 and each web piece 252 are arranged to fit three-dimensionally into the upper end 172 and upper portion of the circumferential wall 176 of each can 170. Further, the first panel fold line 130 and the second panel fold line 132 of the blank 100 are mountain folded (folded inwardly), so that the inner surface of each fold piece 248 is the first sidewall. 112 or the inner surface of the second side wall 114 while being adjacent to the inner surface of the first side wall 112 or the second side wall 114 fits snugly against the circumferential wall 176 of the respective can 170. are placed

Next, the third panel fold line 134 and the fourth panel fold line 136 are mountain-folded (folded inwardly) so that the first bottom inclined portion 116 and the second bottom inclined portion 118 are formed in respective cans. It is placed snugly against the inclined portion of the lower end 174 of 170.

Then, the fifth panel fold line 138 and the sixth panel fold line 140 are temporarily valley-folded to open the first bottom wall 120 and the second bottom wall 122 outward, thereby concave them. Each of the secondary support tabs 204 protrudes from the blank 100 . Each of the protruding recess support tabs 204 is located inside the corner portion of the recess 180 in the lower end 174 of each can 170 . As shown in FIG. 3 , then, in order to join the first bottom wall 120 and the second bottom wall 122 together, a fifth panel fold line 138 and a sixth panel fold line 140 are formed. Acid folded (folded inwardly), each of the recess support tabs 204 engages the inner circumferential surface of the recess 180 of the lower end 174 of each can 170 .

Then, the first bottom wall 120 overlaps the second bottom wall 122, and each of the connecting tabs 230 is engaged with the tab fitting opening 236, whereby the first bottom wall 120 is 2 is connected to the bottom wall (122). Thus, as shown in FIG. 4 , the first bottom wall 120 and the second bottom wall 122 form the bottom wall 302 of the carton 300 to form the bottom end 174 of each can 170. to cover

Next, the actions and effects of this embodiment will be described.

According to this embodiment, the width of the concave support tab 204 of the article holding means 200 formed from a portion of the first bottom inclined portion 116 divides the first sidewall 112 from the first bottom wall 120. It is formed so as to gradually increase in a direction along the first direction (X) toward. In addition, the width of the concave support tab 204 of the article holding means 200 formed from a part of the second bottom inclined portion 118 is from the second bottom wall 122 to the second side wall 114 in the first direction. It is formed so as to gradually increase in the direction along (X). That is, the base end of the concave support tab 204 connected to the first bottom wall 120 or the second bottom wall 122 has a width W2, and the concave support tab on the article accommodating opening 202 side ( The free end of 204 has a maximum width W1. Therefore, the width W2 of the base end of the concave support tab 204 is equal to or less than the maximum width W1 of the concave support tab 204, and the concave support tab 204 is such that the concave support tab 204 is The width is formed so that it gradually decreases from the portion having the maximum width W1 of the concave portion support tab 204 toward the base end. Further, the ends 210 of the second slits 208 on the side adjacent to the first bottom wall 120 or the second bottom wall 122 are bent toward the tab fold line 206 so as to be bent toward the fifth panel fold line. 138 or a position that divides the sixth panel fold line 140 and tab fold line 206. With the second slits 208 having these ends 210, both side portions of the concave support tab 204 are formed by the first or second bottom inclined portions 116, 118 and the first or second bottom. It can move freely from the constraints of the walls 120 and 122. Thereby, the concave support tab 204 includes a foldable ear portion 212 relative to the remaining portion of the concave portion support tab 204, the foldable ear portion 212 having a second direction (Y The foldable ear portion 212 extending outwardly at ) adjoins the inner circumferential surface of the recess 180 in the lower end 174 of the can 170 when assembling the carton 300 from the blank 100. . Thus, the surface area of the recess support tabs 204 that abut (contact) the inner circumferential wall of the recess 180 in the lower end 174 of the article to be packaged, such as the can 170, is increased, and the carton 300 Since the strength to withstand falling off from is increased, the article to be packaged, such as the can 170, can be stably maintained inside the carton 300.

Further, in this embodiment, by the second slit 208 having the end 210 curved toward the tab fold line 206, both side portions of the recess support tab 204 are first or second. It is free to move from the constraints of the bottom inclined portions 116, 118 and the first or second bottom walls 120, 122, and both side portions of the recess support tab 204 are the remainder of the recess support tab 204. Forms a foldable ear portion 212 about the portion. The ear portion 212 extends outward in the second direction from both sides of the concave support tab 204, and is the remaining portion of the concave support tab 204 when assembling the carton 300 to the lower end of the can 170 ( Adjacent to the inner circumferential surface of the recess 180 at 174). Thus, when the carton 300 is assembled, the first bottom wall 120 and the second bottom wall 122 are temporarily folded outward to cause the recess support tab 204 to protrude from the blank 100 . Each of the recess support tabs 204 is located inside the recess 180 in the bottom end 174 of each can 170, then the first bottom wall 120 and the second bottom wall 122 are inside. , so that each of the recess support tabs 204 can engage the inner circumferential surface of the recess 180 in the lower end 174 of each can 170 . This allows the recess support tab 204 to more quickly engage the inner circumferential wall of the recess 180 in the lower end 174 of the items to be packaged, such as a can 170, during packaging of the items to be packaged. do.

Further, according to this embodiment, the boundary between both sides (or one side) of the concave portion support tab 204 and the edge portion of the article accommodating opening 202 is formed by the second slit 208 . However, there is no substantial gap between both sides (or one side) of the concave support tab 204 and the edge portion of the article receiving opening 202, and both sides (or one side) of the concave support tab 204 and The article receiving openings 202 are arranged adjacent to each other. Therefore, when forming the article receiving opening 202 in the blank 100 by the punching process, there is no piece to be removed between both sides of the concave portion support tab 204 and the edge of the article receiving opening 202 and , the portion corresponding to the article accommodating opening 202 can be easily removed from the blank 100.

[Second Embodiment]

Hereinafter, the blank 500 according to the second embodiment of the present invention will be described. It should be noted that descriptions of features similar to those of the first embodiment of the present invention described above are appropriately omitted.

5 is a plan view showing a blank 500 according to the second embodiment, FIG. 6 is an enlarged view of an article fixing means 600 of the blank 500 according to the second embodiment, and FIG. 7 is a second embodiment. A perspective view of a carton 700 assembled from blanks 500 according to an example, and FIG. 8 is a perspective view of a package 704 formed of blanks 500 according to a second embodiment of the present invention, comprising a plurality of cans 170 placed within the package.

As shown in FIG. 5 , the blank 500 has a substantially rectangular bottom wall 526 substantially centrally in the first direction X. In the first direction X, one side edge of the bottom wall 526 is connected to the first bottom inclined portion 522 through a fifth panel fold line 538, and the other side edge of the bottom wall 526 is It is connected to the second bottom inclined portion 524 through a sixth panel fold line 540 . The other side edge of the first bottom sloped portion 522 opposite the side edge connected to the bottom wall 526 is connected to the first side wall 518 via a third panel fold line 534 . The other side edge of the second bottom inclined portion 524 opposite to the side edge connected to the bottom wall 526 is connected to the second side wall 520 via a fourth panel fold line 536 . The other side edge of the first sidewall 518 opposite to the side edge connected to the first bottom inclined portion 522 is connected to the first upper inclined portion 514 through the seventh panel fold line 542, and the second The other side edge of the second sidewall 520 opposite the side edge connected to the bottom sloped portion 524 is connected to the second upper sloped portion 516 via the eighth panel fold line 544 . The other side edge of the first upper inclined portion 514 opposite to the side edge connected to the first side wall 518 is connected to the first ceiling wall 510 via the first panel fold line 530, and the second side wall The other side edge of the second upper sloped portion 516 opposite the side edge connected to 520 is connected to the second ceiling wall 512 via a second panel fold line 532 . Thus, ceiling wall 702 of carton 700 is formed by joining first ceiling wall 510 and second ceiling wall 512 together.

Since the dimension of the first ceiling wall 510 in the first direction X is shorter than the dimension of the second ceiling wall 512 in the first direction X, when assembling the carton 700, the second ceiling wall 512 is coupled with the first ceiling wall 510 such that the second ceiling wall 512 is positioned outside the first ceiling wall 510 .

A pair of openings 558 for constituting the transport opening 550 are formed in the first ceiling wall 510 .

Meanwhile, a pair of folding portions 552 constituting the carrying opening 550 are substantially formed at the center of the second ceiling wall 512 in the first direction X. One part of the fold 552 is connected to the second ceiling wall 512 via a first fold line 554, and the other part of the fold 552 is substantially “U” shaped cut line 556 ) is cut from the second ceiling wall 512 by. The shape of the folding portion 552 is substantially the same as that of the opening portion 558 .

When combining the first ceiling wall 510 and the second ceiling wall 512 to form the ceiling wall 702 of the carton 700, the opening 558 in the first ceiling wall 510 is formed in the second ceiling wall. It is aligned with the fold 552 of 512. Fold 552 is then folded about first fold line 554 to extend through opening 558 and into the interior of carton 700 to form transport opening 550 .

Instead of the tap fitting opening 236 of the first bottom wall 120 and the connecting tab 230 of the second bottom wall 122 in the first embodiment, in the second embodiment, the second upper inclined portion 516 The other side edge of the second ceiling wall 512 opposite to the connected side edge is provided with two connecting tabs 630 positioned at regular intervals in the second direction Y. Each of these connection tabs 630 has a substantially “mushroom” shape. Further, the connection tab 630 protrudes outward in the first direction X, and is connected to the second ceiling wall 512 through the second fold line 634. A pair of fifth slits 632 extending in the first direction X are provided at a portion connecting the connection tab 630 to the second ceiling wall 512 .

In addition, two tab fitting openings 636 are provided near the first upper inclined portion 514 of the first ceiling wall 510 and are arranged at regular intervals in the second direction Y. Each of the tab fit openings 636 is substantially rectangular in shape and is defined by a substantially “U” shaped cut line 638 . The sixth slit 640 obliquely extends outward in the second direction Y from each corner of the tab fitting opening 636 toward the first upper inclined portion 514 or the second upper inclined portion 516 . Each of the tab fitting openings 636 is provided at a position corresponding to each of the connecting tabs 630 .

When assembling the carton 700 from the blank 500, the second ceiling wall 512 is connected to the first ceiling wall 510 by engaging each of the connecting tabs 630 to each of the tab fitting openings 636; , thus forming the ceiling wall 702 of the carton 700. The connecting means between the first ceiling wall 510 and the second ceiling wall 512 is not limited to the present embodiment, and the end edges of the first ceiling wall 510 and the second ceiling wall 512 are bonded to each other using an adhesive material etc. can be attached.

5 and 6, instead of the article holding means 200 in the first bottom inclined portion 116 and the second bottom inclined portion 118 according to the first embodiment, in the second embodiment The first upper sloped portion 514 along the first side includes three article holding means 600 extending from the first ceiling wall 510 to the first side wall 518 . Also, the second upper inclined portion 516 according to the second embodiment includes three article holding means 600 extending from the second ceiling wall 512 to the second side wall 520 . Each of these article holding means 600 has a substantially triangular shaped article accommodating opening 602 for accommodating the upper end 172 of each can 170 and a concave portion formed to protrude toward the article accommodating opening 602. It includes support tabs 604.

As shown in FIG. 6 , the article receiving opening 602 is directed from the first upper sloping portion 514 toward the first sidewall 518 or from the second upper sloping portion 516 towards the second sidewall 520 . is extended The width of the article receiving opening 602 gradually increases in the first direction X from the first upper inclined portion 514 to the first side wall 520 or from the second upper inclined portion 516 to the second side wall 516. formed to decrease.

Recess support tab 604 is connected to first ceiling wall 510 or second ceiling wall 512 via tab fold line 606 . These tab fold lines 606 begin extending from first panel fold line 530 or second panel fold line 532 and end at first panel fold line 530 or second panel fold line 532. do. Each of the folding lines 606 of the tab is formed in an arc shape so as to protrude to the side opposite to the article receiving opening 602 .

In addition, the width of the concave support tab 604 formed from a part of the first upper inclined portion 514 gradually increases in a direction along the first direction X from the first ceiling wall 510 to the first side wall 518. The width of the concave support tab 604 gradually decreases toward the free end of the concave support tab 604 on one side of the article receiving opening 602 after obtaining the maximum width W1. In addition, the width of the concave support tab 604 formed from a part of the second upper inclined portion 516 gradually increases in a direction along the first direction X from the second ceiling wall 512 to the second side wall 520. The width of the concave support tab 604 gradually decreases toward the free end of the concave support tab 604 on one side of the article receiving opening 602 after obtaining the maximum width W1. That is, the base end of the concave support tab 604 connected to the first ceiling wall 510 or the second ceiling wall 512 has a width W2, and the concave support tab 604 connects to its base end and the article accommodating opening. has a maximum width W1 between the free ends of the sides of 602. Therefore, the width W2 of the proximal end of the recess support tab 604 is less than or equal to the maximum width W1 of the recess support tab 604; The width W2 of the proximal end of the concave support tab 604 is equal to or smaller than the width of the free end of the concave support tab 604 on the article accommodating opening 602 side. is formed so that the width of the concave support tab 604 gradually decreases from the portion having the maximum width W1 toward the proximal end of the concave support tab 204. Both sides (or one side of the concave support tab 604) side) and the edge portion of the article accommodating opening 602 adjacent thereto is formed by the second slit 608. Between both side portions of the recess support tab 604 and the edge portion of the article accommodating opening 602 There is no substantial gap between the concave support tab 604 and the edge portion of the article accommodating opening 602 are disposed so as to be adjacent to each other. It extends from the end toward the free end of the recess support tab 604 .

The end 610 of the second slit 608 on the side adjacent to the first ceiling wall 510 or the second ceiling wall 512 is bent toward the tab fold line 606 to form a first panel fold line 530 or It extends to a position where it divides the second panel fold line 532 and the tab fold line 606. With the second slit 608 having such an end 610, both sides (or one side) of the recessed support tab 604 are formed by the first or second upper inclined portions 514, 516 and the first or second slit 608. It can move freely from the 2 side walls 510 and 512. Thereby, both sides of the recess support tab 604 form a collapsible ear portion 612 relative to the remaining portion of the recess support tab 604 . These ear portions 612 extend outwardly in the second direction from both sides of the recess support tab 604 and the ear portions 612 are part of the recess support tab 604 when assembling the carton from the blank 100. The remaining portion abuts the inner circumferential surface of the recess 178 in the upper end 172 of the can 170.

Additionally, a pair of ear fold lines 614 foldably connect ear portion 612 to the remainder of recess support tab 604 . The ear fold line 614 extends in a direction substantially perpendicular to the first panel fold line 530 or the second panel fold line 532 (ie, in the first direction X). One end of ear fold line 614 is provided adjacent end 610 of second slit 608 . The ear fold line 614 may be formed by a slit or the like.

also. In the second embodiment, the first bottom inclined portion 522 is provided with three second article holding means 670, which extend from the first side wall 518 to the bottom wall 526 and extend in a second direction ( Y) are arranged at regular intervals. The second bottom inclined portion 524 is provided with three second article holding means 670, which extend from the second side wall 520 to the bottom wall 526 and are spaced apart in the second direction Y. are placed

Each of the second article holding means 670 is directed toward a second article receiving opening 672 having a substantially rectangular shape for accommodating the lower end 174 of each can 170 and the second article receiving opening 672. It includes retaining tabs 674 that protrude.

An edge of the second article accommodation opening 672 on one side of the bottom wall 526 is an arc-shaped edge 676 protruding toward the second article accommodation opening 672, and this edge 676 is the fifth It extends from panel fold line 538 or sixth panel fold line 540 and terminates at fifth panel fold line 538 or sixth panel fold line 540 . Edge 676 engages the inner circumferential surface of recess 180 at the lower end of can 170 .

The two edges of the second article receiving opening 672 extending in the first direction X from the bottom wall 526 toward the first side wall 518 or the second side wall 520 are symmetrical in the first direction X. It has a substantially "V" shape formed by. The distance between the two edges of the second article accommodating opening 672 extending in the first direction X is maximized at the third panel fold line 534 or the fourth panel fold line 536 .

An edge of the second article accommodating opening 672 is provided with a retaining tab 674 having a substantially “C” shape on the side of the first sidewall 518 or on the side of the second sidewall 520, and receiving the second article The edge of the holding tab 674 on the side of the opening 672 is formed parallel to the second direction Y. A seventh slit 678 inclined outward in the second direction is provided at the connection portion of the retaining tab 674 to the first side wall 518 or the second side wall 520 .

Instead of the pair of break lines 156 of the ceiling wall 110 according to the first embodiment, a pair of waves for easily opening the package 704 on the first side wall 518 according to the second embodiment A break line 560 is provided, and the break lines 560 extend parallel to each other from one end edge to the other end edge in the second direction Y. The pair of break lines 560 may be provided on the second sidewall.

In addition, the depressions 240 at both ends of the ceiling wall 110, the first side wall 112, the second side wall 114, the first bottom wall 120, and the second bottom wall 122 and the second Instead of the protrusions 242 between the depressions 240 according to the first embodiment, in the second embodiment, the first ceiling wall 510, the second ceiling wall 512, and the second ceiling wall 510 are provided in the first direction X. 1 upper inclined portion 514, a second upper inclined portion 516, a first side wall 518, a second side wall 520, a first bottom inclined portion 522, a second bottom inclined portion 524, and Both ends of the bottom wall 526 are formed in straight lines.

Next, the procedure for assembling the carton 700 from the blank 500 shown in FIGS. 5 and 6 is described.

First, each can 170 is aligned to the bottom wall 526 of the blank 500 in two rows and three columns. In this arrangement, a part of the lower end of each can 170 is formed by acid folding (inward folding) of the fifth panel folding line 538 and the sixth panel folding line 540 of the blank 500. The inner circumferential surface of the concave portion 180 in the lower end 174 of each can 170 accommodated in each of the article holding means 670 and edged with the second article receiving opening 672 on the bottom wall 526 side; interlock

Next, the third panel fold line 534 and the fourth panel fold line 536 of the blank 500 are acid-folded (folded inwardly) to the inside of the first sidewall 518 and the second sidewall 520. The faces are arranged to fit snugly against the perimeter wall 176 of each can 170 .

After that, the seventh panel fold line 542 and the eighth panel fold line 544 of the blank 500 are acid-folded (folded inwardly) to form a first upper inclined portion 514 and a second upper inclined portion ( The inner wall of 516 is arranged to fit snugly against the inclined portion of the upper end 172 of each can 170 .

Next, the first panel fold line 530 and the second panel fold line 532 are temporarily bone-folded (folded outward) to open the first ceiling wall 510 and the second ceiling wall 512 outward. ), the concave support tab 604 of the article holding means 600 protrudes from the blank 500 . Each of the protruding recess support tabs 604 is located inside an edge portion of a recess 178 in the upper end 172 of each can 170 . Then, as shown in FIG. 7 , in order to couple the first ceiling wall 510 and the second ceiling wall 512 to each other, the first panel fold line 530 and the second panel fold line 532 are The acid is folded (folded inwardly), and each of the recess support tabs 604 engages the inner circumferential surface of a recess 178 in the upper end 172 of each can 170 .

The second ceiling wall 512 overlaps the first top wall 510 to align the fold 552 of the second ceiling wall 512 with the opening 558 of the first ceiling wall 510 . By connecting each connection tab 630 with a respective tab fitting opening 636 to connect the first ceiling wall 510 and the second ceiling wall 512 to each other, the ceiling wall 702 of the carton 700 is , as shown in FIG. 8, covering the upper end 172 of each can 170.

Next, the actions and effects of the present embodiment will be described. According to this embodiment, the width of the concave support tab 604 of the article holding means 600 formed as a part of the first upper inclined portion 514 extends from the first ceiling wall 510 to the first side wall 518. It is formed to gradually increase in a direction along the first direction X, and the width of the concave support tab 604 is the width of the concave support tab 604 on the article receiving opening 602 side after obtaining the maximum width W1. gradually decreases towards the free end. Further, the width of the concave support tab 604 of the article holding means 600 formed from a part of the second upper inclined portion 516 is from the second ceiling wall 512 toward the second side wall 520 in the first direction. It is formed so as to gradually increase in the direction along (X), and the width of the concave support tab 604 reaches the free end of the concave support tab 604 on the article accommodating opening 602 side after obtaining the maximum width W1. gradually decrease towards That is, the base end of the concave support tab 604 connected to the first ceiling wall 510 or the second ceiling wall 512 has a width W2, and the concave support tab 604 is connected to its base end and the article. It has a maximum width W1 between the free ends on the receiving opening 602 side. Therefore, the width W2 of the base end of the concave support tab 604 is equal to or less than the maximum width W1 of the concave support tab 604, and the width W2 of the base end of the concave support tab 604 is It is equal to or smaller than the width at the free end of the concave support tab 604 on the article receiving opening 602 side. Further, the concave support tab 604 is formed so that the width of the concave support tab 204 gradually decreases toward the base end of the concave support tab 604 at a portion having the maximum width W1. The end 610 of the second slit 608 on the side adjacent to the first ceiling wall 510 or the second ceiling wall 512 is bent toward the tab fold line 606 to form a first panel fold line 530 or It extends to a position where it divides the second panel fold line 532 . With the second slit 608 having this end 610, both sides (or one side) of the recessed support tab 604 are formed by the first or second upper inclined portions 514, 516 and the first or second slit 608. It can move freely from the constraints of the two side walls 510 and 512. Thereby, the recess support tab 604 includes a collapsible ear portion 612 relative to the remaining portion of the recess support tab 604, the ear portion 612 extending outwardly in the second direction. When assembling the carton 700 from the blank 500, it abuts the inner circumferential surface of the recess 178 in the upper end 172 of the can 170. Thus, the surface area of the recess support tab 604 that abuts (contacts) the inner circumferential wall of the recess 178 in the upper end 172 of the packaged article, such as can 170, is increased, and the carton 700 is removed. The strength to resist falling off is increased, and packaged items such as can 170 can be stably maintained inside the carton 700.

Further, according to the present embodiment, by the second slit 608 having the end 610 curved toward the tab fold line 606, both sides (or one side) of the recess support tab 604 are It can move freely from the constraints of the first or second upper inclined portions 514 and 516 and the first or second side walls 510 and 512 . As such, both sides of the recess support tab 604 form a collapsible ear portion 612 relative to the remainder of the recess support tab 604 . Further, these ear portions 612 extend outwardly in the second direction from both sides of the recess support tab 604, and the ear portions 612 support the recess when assembling the carton 700 from the blank 500. The remainder of the tab 604 abuts the inner circumferential surface of the recess 178 in the upper end 172 of the can 170. Accordingly, the first ceiling wall 510 and the second ceiling wall 512 are temporarily folded outward to cause the neck retaining tab 604 to protrude from the blank 500 . Each of the protruding recess support tabs 604 is located inside the edge portion of a recess 178 in the upper end 172 of each can 170 . Thereafter, the first ceiling wall 510 and the second ceiling wall 512 are folded inward so that each of the recess support tabs 604 each have a recess 178 in the upper end 172 of each can 170. interlocks with the inner surface of In this way, the recess support tab 608 is closer to the inner circumferential wall of the recess 178 in the upper end 172 of the item to be packaged, such as the can 170, during the packaging process of the item to be packaged, such as the can 170. It can engage quickly, and rapid packing of the article to be packed can be performed.

Further, according to this embodiment, the boundary between both sides (or one side) of the concave portion support tab 604 and the edge portion of the article accommodating opening 602 is formed by the second slit 608 . However, there is no substantial gap between both sides (or one side) of the concave support tab 604 and the edge portion of the article receiving opening 602, and both sides (or one side) of the concave support tab 604 and The article receiving openings 602 are arranged to abut each other. Therefore, when forming the article receiving opening 602 in the blank 100 by punching processing, there are no small operations to be eliminated between both sides of the concave portion support tab 604 and the edge of the article receiving opening 602; A portion corresponding to the article accommodating opening 602 can be easily removed from the blank 500 .

Examples of blanks according to the invention have been described above. However, the present invention is not limited to the above embodiments, and can be appropriately changed within a range not departing from the spirit of the present invention. For example, the above embodiment describes a blank for producing a carton 700 for packaging a plurality of cans 170 arranged in two rows and three columns. However, for example, the present invention may be a blank for producing a carton 700 for packaging a plurality of cans 170 arranged in 1 row 3 columns or 2 rows 2 columns.

Also, the foregoing embodiment describes that the blank is made of cardboard. However, the present invention can be a blank made of a material other than cardboard, and the material can be modified as appropriate, provided the material has the same degree of flexibility as cardboard.

Further, the above embodiments describe a blank in which the blank includes a bottom inclined portion or has a bottom inclined portion and an upper inclined portion. However, the blank of the present invention may have a configuration without any inclined portion. In this configuration, the ceiling wall is directly connected to the side walls and the floor wall is directly connected to the side walls. Accordingly, the article holding means is provided across the first side wall and the first bottom wall or across the second side wall and the second bottom wall, or across the first side wall and the ceiling wall or across the second side wall and the ceiling wall. can be provided across. A second article holding means may be provided across the first side wall and bottom wall or across the second side wall and bottom wall.

In addition, within the scope not departing from the present invention, the components of the above embodiments may be appropriately substituted with well-known components, and the above modified examples may be appropriately combined.

100: blank
110: ceiling wall
112: first sidewall
114: second sidewall
116: first bottom inclined portion
118: second bottom inclined portion
120: first bottom wall
122: second bottom wall
130: first panel folding line
132: second panel folding line
134: third panel folding line
136: fourth panel folding line
138: fifth panel folding line
140: sixth panel folding line
152: first folding portion
154: first folding line
156: a pair of broken lines
158: second folding part
170: can
172: upper part
174: lower part
176: perimeter wall
178: recess
180: recess
190: first slit
200: item holding means
202: article receiving opening
204: recess support tab
206: tab fold line
208: second slit
210: end of second slit 208
212: ear part
214: ear fold line or slit
216: folding line
230: connection tab
232: cutting line
234: second folding line
236: tap fitting opening
240: depression
242: protrusion
244 article covering means
246: third fold line
248: folding piece
250: fourth fold line
252: web piece
254: fifth fold line
256: cover piece
258: sixth fold line
260: opening
300: carton
302: bottom wall
304: package
500: blank
510: first ceiling wall
512: second ceiling wall
514: first upper inclined portion
516: second upper inclined portion
518: first sidewall
520: second sidewall
522: first bottom inclined portion
524: second bottom inclined portion
526: bottom wall
530: first panel folding line
532: second panel folding line
534: third panel folding line
536: fourth panel folding line
538: fifth panel folding line
540: sixth panel folding line
542: seventh panel folding line
544: eighth panel folding line
550: carrying opening
552: folding part
554: first folding line
556: substantially "U" shaped cutting line
560: a pair of broken lines
600: item holding means
602: article accommodation means
604: recess support tab
606: tab fold line
608: second slit
610: connection end of the concave support tab 604
612: ear part
614: ear fold line or slit
630: connection tab
632: a pair of fifth slits
634: second folding line
636: tap fitting opening
638: cutting line
640: sixth slit
670: second article holding means
672: second article receiving opening
674: hold tab
676: edge with arc shape
678: seventh slit
700: carton
702: ceiling wall
704: package
W1: the maximum width of the concave support tab
W2: base of recess support tab end width

Claims (14)

first wall; and
a second wall coupled to at least the first wall via a first panel fold line;
including,
the first panel has article holding means for holding articles;
the article holding means includes an article receiving opening for accommodating a part of the article, and a concave support tab provided to protrude toward the article receiving opening;
a base end of the recess support tab is connected to the first wall through a tab fold line;
a boundary between at least one side of the recess support tab and an adjacent edge portion of the article receiving opening is formed by a slit, the slit extending from one end of the tab fold line to a free end of the recess support tab;
the slit separates the tab fold line from the first panel fold line;
An end of the slit on a side adjacent to the one end of the tab fold line extends to a position dividing the tab fold line and the first panel fold line,
wherein the one side of the recess support tab forms a foldable ear portion relative to the remaining portion of the recess support tab by the slit. According to claim 1,
wherein the width of the recess support tab gradually decreases from a portion having a maximum width toward the base end. According to claim 1,
wherein the one side abuts the edge portion of the article receiving opening. According to claim 1,
wherein the collapsible ear portion is connected to the recess support tab through an ear portion fold line. According to claim 1,
wherein the end of the slit is curved toward the tab fold line. A carton having a recess in at least one end and containing articles having a substantially cylindrical shape, comprising:
first wall; and
a second wall coupled to at least the first wall via a first panel fold line;
including,
the first panel has article holding means for holding the article;
the article holding means includes an article receiving opening for accommodating a part of the article, and a concave support tab provided to protrude toward the article receiving opening;
a base end of the recess support tab is connected to the first wall through a tab fold line;
a boundary between at least one side of the recess support tab and an adjacent edge portion of the article receiving opening is formed by a slit, the slit extending from one end of the tab fold line to a free end of the recess support tab;
the slit separates the tab fold line from the first panel fold line;
An end of the slit on a side adjacent to the one end of the tab fold line extends to a position dividing the tab fold line and the first panel fold line,
wherein the one side of the recess support tab forms a foldable ear portion relative to the remaining portion of the recess support tab by the slit. According to claim 6,
wherein the width of the recess support tab gradually decreases from a portion having a maximum width toward the proximal end. According to claim 6,
wherein the one side abuts the edge portion of the article receiving opening. According to claim 6,
wherein the collapsible ear portion is connected to the recess support tab through an ear portion fold line. According to claim 6,
wherein the ends of the slits are curved toward the tab fold line. delete delete delete delete