Method and system for making custom-sized open packaging boxes from cardboard having a width W.sub.CBB and corresponding separate closing lids from cardboard having a width W.sub.CBL, the cardboard being continuously supplied to a system comprising structure for cutting, creasing and folding the cardboard to form custom-sized boxes and corresponding lids such that each box comprises a rectangular bottom panel having four edges, a first and a second rectangular end panel joined via respective crease lines to opposite edges of said bottom panel, a first and a second rectangular side panel joined via respective crease lines to opposite edges of said bottom panel, two first and two second rectangular corner panels, the first corner panels joined via respective crease lines to opposite edges of the first end panel, and the second corner panels joined via respective crease lines to opposite edges of the second end panel, each lid comprises a rectangular top panel having four edges, a first and a second rectangular end panel joined via respective crease lines to opposite edges of said top panel, a first and a second rectangular side panel joined via respective crease lines to opposite edges of said top panel, optionally two first and two second rectangular corner panels, the first corner panels joined via respective crease lines to opposite edges of the first end panel and the second corner panels joined via respective crease lines to opposite edges of the second end panel, said method comprising: a step of obtaining information on the desired minimum inner dimensions length L.sub.D, height H.sub.D and width W.sub.D of a box to be created, a calculating step of calculating the dimensions of the panels of a box and of the panels of a lid on the basis of the desired minimum dimensions taking into account predetermined optimization criteria, and a step of creating the box and the lid, wherein said calculating step comprises allowing the inner height of the side panels of the box to be smaller than the desired inner height of the box if (W.sub.D+2 T.sub.CBB+2H.sub.D)>(W.sub.CBBM.sub.B), wherein MB denotes an optional minimum margin that is cut off at the sides of the cardboard supplied and wherein T.sub.CBB denotes a material dependent correction factor generally corresponding to the thickness of the cardboard used for the box, and/or if 2H.sub.D>L.sub.D and choosing the inner height of the side panels of the lid template so that the inner height of the side panels of the box plus the inner height of the side panels of the lid equals at least the desired height.

A carton comprising an inner construct comprising a plurality of inner panels extending at least partially around a first interior and an inner locking tab foldably connected to at least one inner panel. An outer construct can comprise a plurality of outer panels extending at least partially around a second interior. The outer construct can comprise an outer locking tab foldably connected to at least one outer panel, and the inner locking tab and the outer locking tab can cooperate to limit movement between the inner construct and the outer construct. The carton also can comprise an engagement feature comprising a cover panel that is at least partially separable from the at least one outer panel. The inner locking tab of the inner construct can extend along the engagement feature in the outer construct so that the inner locking tab can be engaged when the cover panel is at least partially removed for facilitating movement of the inner construct and the outer construct relative to one another.

A box assembly includes an exterior piece including a middle portion; a connecting segment coupled to the middle portion by a fold line; and a end segment coupled to the connecting segment by a fold line, the connecting segment positioned substantially perpendicular to the middle portion and the end segment; an interior piece positioned within the exterior piece, the interior piece including a side panel, a space defined between the middle portion and the side panel, the interior piece defining a cavity, the end segment extending into the cavity, the end segment coupled to the side panel; and an insulator positioned at least partially within the space.

Prefolded cardboard blank for folding closed packaging boxes of varying height and length, said blank comprising a bottom panel, two side panels, each joined to opposite edges of said bottom panel and a first end panel joined with a first edge to said bottom panel, with a second edge to one of said side panels and with a third edge to the other one of said side panels such that the first end panel and the side panels when erected from the bottom panel form together with the bottom panel a box having an open top and an open side, the first end panel having an end portion intended to form a first top panel, each side panel having an end portion intended to form at least one second top panel and a corner panel, the bottom panel having an end portion intended to form a second end panel and a third top panel, and each side panel having a crease line running at an angle of 45 upwards from a corner, where the edges of the respective side panel, the first end panel and the bottom panel meet.

A cardboard box erector that folds four flaps provided on edges of an opening of a cardboard box so as to surround the opening is disclosed. The four flaps include a locking flap folded last among the four flaps. The cardboard box erector includes a folding unit configured to fold each of the four flaps in a predetermined order to close the opening, and a pushing unit configured to perform an action to push the locking flap inside the cardboard box and pull the locking flap back. The pushing unit has a suction unit configured to such and hold the locking flap.

A lid forming device of a cardboard box using a first flap with a slit and a second flap to be extended after being bent into a mountain shape is disclosed. The lid forming device includes first and second folding mechanisms. The fist folding mechanism folds the first flap in a direction of closing the opening. The second folding mechanism bends the second flap into a mountain shape and inserts part of the second flap into the slit of the first flap while extending the second flap. The second folding mechanism includes first and second retaining units. The first retaining unit retains a first face of the second flap located between a free end of the second flap and a bend line set beforehand in the second flap. The second retaining unit retains a second face of the second flap located between an anchored end and the bend line.

A multivariable perforated adjustable height box is provided with improved folding, bending, and separation of adjacent panels. The multivariable perforated adjustable height box may include a box, columns, rows, glue tabs, column scores, row scores, perforations, cuts, skips, and bundle breakers. Perforation patterns may be irregular, angled, shifted, or otherwise configured to increase usability, strength, and/or other aspects of the packaging. A method to produce a packaging device with improved folding, bending, and separation of adjacent panels using the multivariable perforated adjustable height box is also provided.

A carrier for holding a plurality of containers includes a plurality of panels. The plurality of panels includes at least one central panel for being attached to at least one container of the plurality of containers. The plurality of panels further includes at least one attachment panel foldably connected to the at least one central panel, the at least one attachment panel comprises a plurality of container retention features for at least partially receiving a top portion of a respective container of the plurality of containers. The plurality of panels further includes at least one handle panel foldably connected to the at least one central panel for forming a handle of the carrier.

Provided herein is a machine for forming a container from a blank including a tray and a lid. The machine has an upstream end where the blank is loaded and a downstream end where the container is discharged and includes a frame, a pre-forming assembly, and a mandrel assembly. The pre-forming assembly is configured to partially form the lid and the tray by folding each of a plurality of side panels of the blank and further form the tray by partially folding a front panel assembly of the blank, the front panel assembly including a front panel and a roll-over panel. The mandrel assembly is mounted to the frame and configured to engage a bottom panel of the tray to form each of a plurality of corners of the tray and fold the roll-over panel to form a front wall of the container.

A carton for holding at least one article. The carton includes a plurality of panels that extends at least partially around an interior of the carton and a plurality of end flaps respectively foldably connected to a respective panel of the plurality of panels for closing at least one closed end of the carton. The carton comprises at least one asymmetrical corner extending between a top of the carton and a bottom of the carton and that transitions between a first configuration at one of the top and the bottom of the carton and a second configuration at the other of the top and the bottom of the carton.