JP2005532231A - Carton with a plurality of bottom wall panels overlapping each other and a blank for such a carton - Google Patents

Abstract

The wrapping type carton according to the present invention includes a pair of bottom wall panels (12, 20) that are arranged to overlap each other. One bottom wall panel (12) includes a locking tab (38). This locking tab is arranged on a protruding tongue (42) protruding from the edge of the other bottom wall panel (20). A lock opening (40) having a complementary shape is formed in the protruding tongue (42). When the lock tab (38) and the lock opening (40) are engaged, the panels (12, 20) are fixed in a state of overlapping each other. On both sides of the locking tab (38), one bottom wall panel (12) comprises a bendable tab (50, 52) protruding from the edge of the bottom wall panel.

Description

  The present invention relates to a carton comprising a plurality of bottom wall panels that overlap each other and to a blank for forming such a carton. More particularly, the present invention relates to a wound carton where the bottom wall panels are secured to each other by a single piercing lock means in an overlapping manner. The perforation locking means is well known and includes a locking tab formed on one bottom wall panel. The locking tab is inserted into the receiving opening formed by the bendable tab in the other bottom wall panel and locked into the receiving opening.

  It has been found that in a carton having a single piercing lock means in the central position for securing a plurality of bottom wall panels together, two problems arise. One problem is that the locking means is easy to tear. This occurs when tearing stress is applied to the locking means when a plurality of bottom wall panels are displaced from the surface contact state, for example, when cartons are stacked on a supermarket shelf. Cheap. Another problem is that both bottom wall panels rotate or tilt around the locking means. This may also tear the locking means, or the locking means may be disengaged. As a result, the strength of the carton is lost, and for purposes such as packaging and sales, the carton completely loses its effectiveness.

  The present invention seeks to provide a carton having a bottom wall panel configuration such that the bottom wall panels do not overlap in a conventional manner. That is, the edge of one bottom wall panel does not completely overlap the edge of the other bottom wall panel, but the edges of each bottom wall panel are "alternating up and down with each other". It seeks to provide a carton having a bottom wall panel configuration, such as that described.

  Known cartons and blanks for winding dies are disclosed in GB 1 493 811. The carton according to this document comprises two molded bottom wall panels. One bottom wall panel is formed with a series of three perforated locking members disposed along the tongue of the bottom wall panel, with complementary locking openings at the edges of the other bottom wall panel. It is formed in the vicinity. The edge of this other bottom wall panel forms a recess with respect to the rest of the panel.

There is no disclosure of overlapping panels in a manner different from the prior art. In fact, even if the “up and down alternating” overlap configuration proposed by the present invention is applied, the piercing lock member cannot be aligned with the corresponding lock opening. For this reason, the bottom wall panels of the carton cannot be locked to each other.
UK Patent Application Publication No. 1 493 811

  The present invention seeks to solve or at least mitigate the various problems in the prior art.

  In one aspect of the present invention, a carton comprising first and second panels that overlap each other, the first panel including a locking tab for a male piercing lock that is engageable with each other; One of the female piercing lock tabs is provided, and the second panel is provided with the other of the male piercing lock tab and the female piercing lock tab that can be engaged with each other. A carton is provided that includes alignment means for facilitating alignment of the locking tabs during the mutual locking process of both panels. The alignment means includes: a protruding tongue protruding from the edge of the first panel; and a plurality of paired flaps that are spaced apart from each other and bent at the edge of the second panel. I have. Each bendable flap is located directly below the edge of the first panel on both sides of the protruding tongue.

  Preferably, the second panel is disposed directly above the protruding tongue, and the bendable flap is disposed directly below the first panel and engages both sides of the tongue.

  In an additional feature in this aspect of the invention, the protruding tongue includes a locking opening that is engaged by a male locking tab disposed adjacent the edge of the second panel; Thereby, the first and second panels can be fixed in an overlapping state. Preferably, the locking opening is defined by a female locking tab.

  In a second aspect of the present invention, a carton for containing at least one article is provided with a pair of two bottom wall panels that are overlapped with each other, the bottom wall panels being overlapped. A carton is provided that is secured to one another along one or more parts only on the part, so that the exposed edge of the unsecured panel is exposed to the outside of the carton. A portion of the edge of one bottom wall panel is overlapped to the outside of the carton with respect to the edge portion of the other bottom wall panel, and an adjacent portion of the edge of the other bottom wall panel is It overlaps the outside of the carton with respect to the other part of the edge of the wall panel.

  Preferably, a part of the edge of the one bottom wall panel is fixed to the edge part of the other bottom wall panel, and the adjacent part of the edge of the other bottom wall panel is the one bottom wall panel Is left unfixed.

  In some embodiments, a portion of the edge of one bottom wall panel is a central edge portion of the bottom wall panel, and an adjacent portion of the edge of the other bottom wall panel is a portion of the central edge portion. A pair of side edge portions that are spaced apart from each other and correspond to the positions on both sides are used.

  The center edge part of one bottom wall panel can overlap the protrusion tongue part located between the side edge part which makes a pair.

  Preferably, the central edge portion of one bottom wall panel is a recessed edge portion of the edge of the bottom wall panel, and protruding tabs are provided on both sides of the central edge portion.

  Alternatively, the edge portions located on both sides of the protruding tongue can overlap each corresponding protruding tab.

  In an additional feature of this second aspect of the invention, the protruding tab is foldably connected to an adjacent edge portion of one bottom wall panel.

  In another additional feature of this second aspect of the invention, the central edge portion of one bottom wall panel and the adjacent edge portion of the other bottom wall panel are substantially aligned. .

  In a third aspect of the present invention, a male piercing lock member which is a blank and includes first and second panels arranged to overlap each other, the first panel being engageable with each other. And the female piercing lock member is provided, and the second panel is provided with the other of the male piercing lock member and the female piercing lock member that can be engaged with each other. Alignment means for facilitating alignment of the locking members during the panel mutual locking process, the alignment means comprising a projecting tongue projecting from an edge of the first panel, and a second panel And a pair of bendable flaps that are spaced apart from each other at the edge and each bendable flap has a first panel on both sides of the protruding tongue. Such as to be located just below the edge, the blank is provided.

  Preferably, the protruding tongue comprises a locking opening, which is engaged by a locking tab located adjacent to the edge of the second panel, thereby overlapping the first and second panels with each other. It can be fixed in the state.

  Preferably, the locking opening is formed by a female locking tab.

  The present invention will now be described with reference to the accompanying drawings by way of example only by way of example only, which is not intended to limit the present invention in any way.

  In particular, FIG. 1 shows a blank (10), which is made of cardboard or other sheet material having a similar function. In this embodiment, the blank is of a well-known wrapping type, for example a set of a plurality of containers such as a plurality of deep containers (or pots) 'P' (FIG. 2). It is supposed to be wrapped around. The long blank (10) includes a first bottom wall panel (12), a first side wall panel (14), a top wall panel (16), a second side wall panel (18), and a second bottom wall panel ( 20), and these panels are configured such that adjacent panels along each of the folding lines (22, 24, 26, 28) are foldably connected to each other. ing.

  In certain embodiments, the heel retention openings (30, 32) are configured to prevent deviation of the article from the end when multiple articles are introduced into the sleeve formed from the blank. Along the transverse folding line (22), partly in the first bottom wall panel (12) and partly in the first side wall panel (14). The function of each heel holding opening is enhanced by the corresponding bendable flap (30a, 32a). Similar heel retention openings (34, 36) are provided along the transverse fold line (28), partly in the second bottom wall panel (20) and partly in the second side wall panel (18). ) Is formed. The functions of these heel holding openings are similarly enhanced by the corresponding bendable flaps (34a, 36a).

  The first bottom wall panel (12) has a “male” lock tab (38) of the perforated lock type. Such a lock member is well known in the art, and the lock tab is configured to be foldable around the base fold curve (38a), and the fold projects from the plane formed by the blank. be able to. The locking tab is received within the locking opening (40) when aligned with the locking opening (40). The lock opening (40) is in this embodiment formed by a bendable tab (40a) ("female" tab) formed in the second bottom wall panel (20).

  In the conventional normal configuration, the bottom wall panels with the locking tabs are simply positioned in the overlapping relationship from the outside of the carton to the bottom wall panel with the locking opening. Were overlapping. However, in the present invention, the bottom wall panels are overlapped with a configuration "alternating vertically". For this purpose, a protruding tongue (42) is formed on the free edge of the second bottom wall panel (20). The protruding tongue (42) protrudes beyond the adjacent portions (44, 46) forming the remainder of this free edge of the second bottom wall panel (20). Preferably, the locking opening (40) is formed in the protruding tongue (42). A central edge (48) is formed on the first bottom wall panel (12) at the opposite end of the blank. A pair of bendable flaps (50, 52) are provided on both sides of the central edge (48). The bendable flaps (50, 52) have corresponding folding curves (50a, 52a), respectively. A recess is formed by the central edge (48) and the bendable flaps (50, 52).

  Starting from a blank, it is necessary to perform a series of sequential folding operations to form a finished carton that is crushed flat. Such an operation will be described later in detail with reference to FIGS. The folding operation can be performed by one or more straight line machines. Thus, it is not necessary to rotate or flip over when completing the carton. The folding operation is not limited to those described below, and can be changed according to specific manufacturing requirements.

  2 to 4, the blank is applied to a plurality of deep containers (or pots) 'P' that form a group as shown. Thus, the second bottom wall panel (20) can be brought into contact with the bottom surfaces of the plurality of deep containers, and the top wall panel (16) can be brought into contact with the top surfaces of the plurality of deep containers. Can be touched. In this case, each peripheral heel portion of two adjacent deep containers is received in a corresponding heel retaining opening (34, 36).

  Thereafter, the first bottom wall panel (12) is operated to be brought into contact with the remaining two deep containers. At this time, the bendable flaps (50, 52) are bent inward of the carton along the corresponding folding lines (50a, 52a). Thereafter, as shown in FIG. 3, the bendable flaps (50, 52) are attached to the edge portions (44, 46) located on both sides of the protruding tongue (42) of the second bottom wall panel (20). Insert slides directly underneath. Similarly, when the bottom wall panels are moved into the overlapping relationship by sliding, the tongue (42) enters into the recess (54), as shown in FIG. It enters just below the edge portion (48) of the wall panel (20).

  In this way, both bottom wall panels become “alternating up and down”. That is, as shown in FIG. 5, the protruding tongue portion (42) of the second bottom wall panel (20) is located immediately below the central region of the first bottom wall panel (12), and the adjacent edge portion ( 44, 46) are located directly above the bendable flaps (50, 52).

  The overlap configuration is most clearly shown in FIGS. As shown in FIG. 5, in a state where the first bottom wall panel (12) and the second bottom wall panel (20) are completely overlapped, the locking tab (38) is completely positioned with respect to the locking opening (40). After the alignment, the piercing lock is performed and the lock is engaged. Thereby, a 1st bottom wall panel (12) and a 2nd bottom wall panel (20) can be mutually fixed. In the fully engaged state with the overlap configuration, the edge (48) of the first bottom wall panel (12) is relative to the edge portions (44, 46) of the second bottom wall panel (20). Is substantially aligned.

  Therefore, it is assumed that the bottom wall panels are completely overlapped with the configuration of “alternating up and down”, and when the fixed lock is engaged, the exposed portion of the bottom wall panel is relatively displaced. Hard to wake up. That is, the recessed edge (48) which tends to be separated from the second bottom wall panel (20) is relatively less likely to be displaced. However, the recessed edge (48) is located in the intermediate intervening lock region of both bottom wall panels, and therefore resists the rise from the second bottom wall panel (20). Show.

  Similarly, the “alternating up and down” lock configuration prevents tilting. That is, relative rotation of each bottom wall panel around the center lock is prevented. Such tilting or relative rotation is a disadvantage in the known bottom wall panels that are conventionally configured in an overlapping manner.

  The completed and completed carton is shown in perspective view in FIG. Here, a state in which one bendable flap is positioned directly below one deep container is illustrated.

  In this specification, terms related to orientation such as “top”, “bottom”, “end”, “side”, “upper side”, “lower side”, “inside” and “outside” with respect to each panel, It will be appreciated that the panels are not limited to such orientations, but are only functioning to distinguish the panels from each other. Also, all bendable connections are not necessarily constituted by a single fold line. Indeed, the bendable connection can be formed from one or more of a score line, a tear line, or a folding line without departing from the scope of the present invention.

  It will be understood that various modifications can be made without departing from the scope of the invention. For example, a carton can be configured to accommodate a single article or to accommodate two or more articles. However, the size and shape of the openings and panels can be adjusted according to the specific requirements for the article to be packaged, and other known article holding means can be used. The present invention and preferred embodiments of the present invention are configured as having a shape that can provide sufficient rigidity to stably hold an article, such as a primary container, while having some flexibility. About carton. The blank shape minimizes the amount of cardboard required for carton formation. The article can be applied to the carton either manually or by an automated machine. It is envisaged that the present invention can be applied to a tray type carton and various types of cartons, without being limited to only a wound carton.

It is a top view which shows the blank for forming the winding type | mold carton by one Embodiment of this invention. In this embodiment, it is a perspective view which shows a mode that the blank was partially applied with respect to four containers which make the group made into the deep container which accommodated dairy products. It is a top view which shows the introduced carton, Comprising: The mode at the time of making the bottom wall panel into an overlapping relationship is shown. Although it is a top view which shows the bottom wall panel similar to FIG. 3, the lock tab is substantially aligned with respect to the lock opening, and the lock tab can be engaged. FIG. 4 is a plan view showing the bottom wall panels overlapping each other in the completed carton, with the bottom wall panels completely overlapping and locked together. It is the perspective view which shows the introduced carton by one Embodiment of this invention, Comprising: It is the perspective view seen from one end and seeing from diagonally upward.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Blank 12 1st bottom wall panel 14 1st side wall panel 16 Top wall panel 18 2nd side wall panel 20 2nd bottom wall panel 38 "Male type" lock tab 40 Lock opening 40a Bendable tab 42 Projecting tongue 44 Adjacent edge Part 46 Adjacent edge part 48 Central edge, recessed edge 50 Foldable flap 52 Foldable flap 54 Recessed

Claims (16)

A carton,
Comprising first and second panels overlapping each other;
The first panel is provided with one of a male piercing lock tab and a female piercing lock tab that are engageable with each other,
The second panel is provided with the other of a male piercing lock tab and a female piercing lock tab that can be engaged with each other,
And further comprising alignment means for facilitating alignment of the locking tabs during the mutual locking process of the panels.
The positioning means includes a projecting tongue projecting from an end edge of the first panel, and a plurality of paired flaps that are spaced apart from each other and bendable at the end edge of the second panel. With
The carton, wherein each of the bendable flaps is positioned directly below the edge of the first panel on both sides of the protruding tongue. The carton of claim 1,
The second panel is disposed immediately above the protruding tongue;
The carton, wherein the bendable flap is disposed immediately below the first panel and engages with both sides of the tongue. The carton according to claim 1 or 2,
The protruding tongue comprises a locking opening;
The locking opening is engaged by the male locking tab disposed adjacent to the edge of the second panel, thereby securing the first and second panels in an overlapping manner. A carton characterized by being able to. The carton of claim 3
A carton wherein the locking opening is defined by the female locking tab. A carton for containing at least one article,
Comprising two bottom wall panels that are paired with each other,
The bottom wall panels are secured together along one or more portions only on the overlap portion, thereby exposing the exposed edge of the unsecured panel to the outside of the carton;
A portion of an edge of the one bottom wall panel is overlapped to an outside of the carton with respect to an edge portion of the other bottom wall panel;
A carton, wherein an adjacent portion of an edge of the other bottom wall panel is overlapped to the outside of the carton with respect to another portion of the edge of the one bottom wall panel. The carton according to claim 5,
The portion of the edge of the one bottom wall panel is fixed to the edge portion of the other bottom wall panel;
The carton characterized in that the adjacent portion of the edge of the other bottom wall panel is left unfixed to the one bottom wall panel. The carton of claim 6 wherein
The portion of the edge of the one bottom wall panel is a central edge portion of the bottom wall panel;
The carton characterized in that the adjacent portion of the edge of the other bottom wall panel is a pair of side edge portions that are spaced apart from each other and that correspond to positions on both sides of the central edge portion. The carton of claim 7,
The carton characterized in that the central edge portion of the one bottom wall panel overlaps with a protruding tongue located between the pair of side edge portions. The carton of claim 8.
The central edge portion of the one bottom wall panel is a recessed edge portion of the edge of the bottom wall panel, and projecting tabs are provided on both sides of the central edge portion. A carton characterized by The carton according to claim 5,
The carton characterized in that edge portions located on both sides of the protruding tongue part overlap with the corresponding protruding tabs. The carton according to claim 9 or 10,
The carton characterized in that the protruding tab is foldably connected to the adjacent edge portion of the one bottom wall panel. The carton according to any one of claims 5 to 11,
A carton wherein the central edge portion of the one bottom wall panel and the adjacent edge portion of the other bottom wall panel are substantially aligned. A blank for forming a carton,
A blank for forming the carton according to any one of claims 1 to 12. Blank,
Comprising first and second panels overlapping each other;
The first panel is provided with one of a male piercing lock member and a female piercing lock member that are engageable with each other,
The second panel is provided with the other of a male piercing lock member and a female piercing lock member that are engageable with each other,
Furthermore, it comprises alignment means for facilitating alignment of the lock members during the mutual locking process of the two panels,
The positioning means includes a projecting tongue projecting from an end edge of the first panel, and a plurality of paired flaps that are spaced apart from each other and bendable at the end edge of the second panel. With
Each of the bendable flaps is located on both sides of the projecting tongue, and is located immediately below the edge of the first panel. The blank according to claim 14,
The protruding tongue comprises a locking opening;
The locking opening is engaged by a locking tab disposed adjacent to the edge of the second panel, thereby allowing the first and second panels to be secured in an overlapping manner. Characteristic blank. The blank according to claim 15,
The blank, wherein the lock opening is formed by the female lock tab.

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