DE1536212A1 - Cardboard box with a hinged lid closure - Google Patents

Description

Carton box with a flip-top closure The present invention relates on a cardboard box and in particular on a cardboard box with a hinged lid closure.

The invention is based on the object of a new and improved Cardboard box with a new closure in the form of a hinged lid that is easy to create can be opened and closed. Furthermore, this carton should have such a structure own that it is flawlessly and economically Lich on a conventional rapid packaging machine can be produced. For this cardboard box should continue in terms of training of the hinged cover no more material is required than for a corresponding one Carton box fitted with conventional full length flaps, i.e. H. with a flap length equal to the cross-sectional dimensions of the carton body, is required so that the present cardboard can be produced economically can.

The invention is set out below together with further objects based on a preferred embodiment shown in the drawing described. The drawing shows: FIG. 1 a plan view of a folding card blank according to the present invention FIG. 2 is a plan view of the blank according to FIG. 1, after having carried out the first step for the formation of the new fastener is; FIG. 3 is a view similar to FIG. 2, which illustrates a further manufacturing stage and wherein the blank is prepared for folding around a mold block; 4 shows a perspective view of the blank folded into a box, which is provided with a side hem; Figs. 5, 6 and 7 are similar representations, in which the manufacturing steps involved in folding and gluing the foldable parts on the bottom are illustrated; 8, 9 and 10 perspective representations, which illustrate the steps involved in folding and gluing the top closure folds, wherein the hinged lid is manufactured according to the invention; 11 is a perspective View of the finished carton; and FIG. 12 is a similar view showing the Hinged lid is in the open position.

In general, the invention relates to a new and improved carton with a new snap fastener on one end side, here on the top of the box, which can be referred to as "clips" and which according to the invention should be economical to manufacture and easy to open. In the illustrated Embodiment is the upper closure # made of connected closure # -folded parts formed, which are folded and glued to form a hinged lid on the finished box with the sides of the lid three sides of the body in the finished box overlap, while the fourth side of the lid is hinged to the carton body is. The lid is partially slotted in its closed position or weakened sections secured along three upper score lines of the cardboard body, which by the consumer to open of the cardboard box easily broken or can be torn open, after which the lid forming a hinge over the fourth score line remains connected to the box body.

A significant advantage of the carton according to the invention is that that this on a conventional cardboard making machine operating at high speed can be manufactured. Another major advantage is based on the fact that the new cover can be made from interrelated closure parts without that more material is required than in the manufacture of a conventional termination. in the form of full size folds, d. H. with a size corresponding to the cross-sectional dimensions of the card body, which is why the cardboard according to the invention can be manufactured inexpensively is.

The drawings, in particular FIG. 1, show a 10 as a whole designated cardboard blank, hereinafter also referred to as folding box blank, which end wall panels 12, 14 and side wall panels 16, 18 comprising the carton body and are delimited by pre-scored lines 20, 22, 24, 26, with a lateral Folded hem parts 28 are connected to the side wall panel 18.

The folding box blank has folding parts for the aoden lock, from the end folding parts 30, 52 with the end wall panels 12, 14 are each connected via pre-scored lines 54, 36 and made of side fold parts 8, 40 exist, which are connected to the side wall fields 16, 18 are connected.

In the case of the folding box blank shown, the upper closure parts comprise a contiguous part 46 consisting of three sections, the one with the trunk panels 12, 16 and 14 is connected and which is designed such that it under formation of the three sides of the hinged lid that overlap the box body at the upper end can be folded. The top closure further includes a gusset 48 which is hingedly connected to the side wall panel 18 via a notched line 50 and the last folding part to be folded over in the formation of the hinged cover for the Represents finished cardboard.

The section 46 consists of three connected folding parts 52, 54 and 56, which emanate from the body panels 12, 16 and 14 and cross over with one another pre-scored lines 57, 59 are connected, which are opposite to the longitudinal score lines 20, 22 of the fuselage fields are slightly offset to the outside. The one to form the lid Serving portion 46 is connected to the trunk panels along the upper score line 58 which is provided with weakening points, which are here as elongated, spaced-apart Slots are shown, the relatively small between them, Leave breakable connecting sections, over which the hull panels and the contiguous Section 46 are connected. The score line between the end wall panel 12 and the cold part 52 has an elongated slot 6o, which is relatively small, unslit Connecting sections 62, 64 left at its ends. The score line between that Side wall panel 16 and the folding part 54 is provided with two elongated slots 66, 68, the two relatively small unslit sections at the ends of the folding part 70, 72 and a relatively small unslotted section 74 in the middle left. The score line between the end wall panel 14 and the fold portion 56 is also provided with an elongated slot 76, which the two small end sections 78, 80 leaves.

The serving for the cover formation section 46 is also with two transversely directed score lines 82, 84 at a distance from one another, which delimit the sections 86, 88, have the same width and above each other can be folded to form double-layer cover side walls, which can be used when finished Cardboard box on the outside at the top of the box body. Here remain proportionate short folding parts 90, 92, 94 left, which then protrude over the side walls of the fuselage. As can be seen from FIG. 1, there are recesses in the transverse section 86 96, 98 provided in alignment with the offset score lines 57, 59, whereby the tension at the corners of the lid in the finished box is relieved. The corners of the short lid folding part 92 are cut off as shown at 100, and so are the cross sections 86, 88 for reasons to be described trimmed at 102.

While the cardboard blank according to FIG. 1 is still in its unwound State is located, certain areas on the inner surface of the blank are using provided with an adhesive coating. A narrow adhesive strip 104 is applied to the edge area of the Ehdwandfeldes 12 applied to this Frld with the lateral hem folding part 28 to be glued together when forming the box. The bottom end part 58 is on rectangular areas 106 and the bottom closure part 40 is on area 108 Covered with an adhesive layer. The transverse section 86 of the cover part 46 is coated with an adhesive layer on the areas 110, 112, 114, with it the section 86 with the transverse section 88 to form the two-layer side walls of the lid can be connected. The side fold portion 48 is in the field 116 provided with an adhesive coating along its edge.

Before the blank is folded into a rectangular shape, first the lid portion 46 is folded to form a two-ply sidewall portion 118. As can be seen from FIGS. 2 and 3, T: tird is the connected section 46 folded down about the weakened score line 58 so that it is on the outside of the Fuselage descendant rests, and the section -46 is then up around the score line 82 folded, with the section 88 placed against the adhesive layer surfaces 110, 112, 114 will. By applying pressure, these sections are formed to form the two-ply Section 118 connected to each other.

The so far prepared folding box blank is then into rectangular Formed (Fig. 4) by placing the blank, preferably around a mold block is folded, the adhesive layer strip 104 from the lateral seam folding part 28 overlaps and is connected to it by pressure. During this folding process the two-layer section 118 is also bent so that it is at the top on three sides of the RumpSteiles forms a band that is not flatly connected to these sides, the inner surface of the two-layer section, which rests against the adjacent side wall panels, is free. of adhesive and with the fields only about the mentioned proportionally small, unslit sections along the score line. It can be seen that the outwardly offset score lines 57, 59 have a margin or an additional width provide that makes it possible to put the outer layer over the inner layer at the corners of the cardboard box, and that the recesses 96, 98 appear at the corners, so that any impermissible stress or Tension avoided when the two-ply section is folded around the corners.

In practice, the bottom closure parts are then one on top of the other the end of the mold block is folded into the row of rows shown in FIGS. 5, 6 and 7. The end pieces 0, 32 are first folded inward and then the side pieces 38 placed over the end portions so that the rectangular adhesive layer areas 106 against Surface areas of the end parts come to rest. Finally, the folding part 40 is folded over, the adhesive layer area 108 against the remaining surface areas of the end parts and is also brought into overlap with the side parts 58. By applying pressure can then cause the adhesion or gluing and complete the bottom seal will. The bottom closure shown is the so-called ? 1economic1? Bottom closure in which the folding parts of the closure are shorter than the width of the carton and with the side folds along the center of the carton, in contrast to a conventional bottom seal, in which both gusset parts a full length, d. H. a length equal to the thickness, or better equal to the width of the box.

It goes without saying that all customary or preferred adhesive agents can be used can be used for gluing or sealing the foldable parts. In particular Cases can be a hot melt adhesive can be used that dries quickly after its application; in such cases there will be heat and pressure used to reactivate the adhesive and perform the seal.

In practice, the cardboard is after its bottom by gluing is securely closed, removed from the mold block and with the material to be packaged filled. In this case, an insert bag (not shown) can be used in the carton shown. are introduced, the opening of which is closed after completion of the filling processa and can be sealed.

After completion of the filling process, the upper closure is in the 8, 9 and 10 illustrated manner, with initially the short end fold portions 90, 94 folded inward and then the short side fold portion 92 is folded inwards over this. After that, the foldable and with a Adhesive coated side fold portion 48 on top of the underlying one Folded parts folded over and adhesively connected to them (FIG. 10) in order to to produce the "clip-on lid" cardboard shown.

By cutting off the corners of the side folding part 92 at the front ends of the short lateral folding parts 90, 94 each a triangular one Area uncovered, which uncovered areas with the last folded part 48 be adhesively connected, whereby the material mass to the adjacent Corners annoyed and the bonding becomes more effective.

From the above description it can be seen that when finished Carton of the top closure along fold line 50 and the three double-ply sides 118 of the lid, which reach over the upper edge of the fuselage, by relatively small unslit sections 62, 64, 70, 72, 74, 78 and 80 along the score line 58 are connected to the fuselage, these non-slotted sections being the fragile Form areas between slots 60, 66, 68 and 76. To open the box it is therefore only necessary to move upwards against the lower front edge of the Push the lid with sufficient force to break the connections, after which the cover swings back around its hinge-shaped score line 50, as shown in Fig. 12, in which the broken parts at the corners and are indicated in the middle of the side wall field. The hinged lid can now comfortably returned to its original position and the box sealed. From Fig. 12 it can be seen that the special design of the cutouts 102 has two layers cut away corner areas 120 yields, wherein the outer layer is rounded, to make it easier to close the box. hen also the weakened areas lengthways the Score line here as breakable residual bridges between elongated ones Slots are shown and described, so the weakening points can also consist of closely spaced holes along score line 58, or in In other words, from a perforated score line 58. Another significant advantage the inventive design of the hinged lid is based on the fact that the weakened Make along score line 58 all the way through the sections folded over of the lid are hidden and protected against unintentional destruction are.

As already mentioned, the present box with a hinged lid closure economically produced on a conventional automatic packaging machine by folding the pre-scored cardboard blank around a shaped block. Even if, according to a preferred type of manufacture, initially the bottom closure parts against the Ehde of the mold block kes are pressed and then the carton for a filling is removed from the mold block through its top, so encompasses the invention also the possibility of opening the top fastener by pressing it against the end of the Manufacture mold block. With this type of installation, the carton is released from the block removed and filled through the bottom, after which the bottom seal is folded and sealed and the box is placed upright.

As described above, the invention is directed to a carton directed, which is provided with a hinged lid lock of the new type of training, which can be produced economically with a low consumption of cardboard material and that in a conventional automatic packaging machine to achieve a powerful and easy-to-open flip lock can.

Even if the invention based on a preferred embodiment has been described, it goes without saying that other embodiments are also included within the scope of the present invention.

Claims (6)

Claims 1. Rectangular folding box with a hinged lid and a closed bottom, which has four main fields folded into a box body possesses, characterized in that the hinged cover consists of three interrelated, via a separable weakening line (58) with the upper edge of three main fields (12, 16, 14) connected folding parts (52, 54, 56), which form a two-ply Ribbon (layers 86 and 88) on the outside of the three main fields down and again folded upwards and with a 5e one that still protrudes over the main fields Edge section (90, 92, 94) are folded over into the plane of the box body opening, and one with the upper edge of the fourth major surface (18) via a rebate notch (50) is hingedly connected folding part (48), which is fixed to the edge sections (90, 92, 94) connected, e.g. B. glued, is. 2. Folding box according to claim 1, characterized in that the three folding parts (52, 54, 56) are connected to one another via score lines (57, 59), which opposite the fold lines (20, 22) of their adjoining main fields (12, 16, 14) according to the margin required for the formation of the two-layer tape outward are offset, and that the two layers (86, 88) of the Tape are adhesively connected to one another. ). Folding box according to Claims 1 and 2, characterized in that that the folding parts (52, 54, 56) have a length at most equal to the shorter cross-sectional dimension of the chess body, the hinged cover around the upper edge of the optionally wider side of the box body is pivotable. 4. Folding box according to claims 1 to 3, characterized in that that the underlying layer (86) of the two-layer tape with recesses (96, 98) is provided, which is in alignment with the score lines (57, 59) between the folding parts (52, 54, 56) lie. 5. Folding box according to claims 1 to 4, characterized in that da # / the ends (102) of the two-ply tape at the corners to facilitate one closing the hinged cover again. 6. Folding box according to claim 5, characterized in that the cut ends of the outer layer (88) of the two-ply tape for ease closing again are rounded. L e r s e i t e