CZ11721U1 - Package with tear-off window - Google Patents

Description

Technical field

In general, the invention relates to a box-type package, and more particularly to packaging that is assembled from a single blank. Packages of this kind are commonly used for storing, transporting and displaying products in stores and can also be used by the end user.

Background Art

A variety of packages are known from the prior art that can be assembled from a single package blank by sequentially folding or erecting one blank, such as paper, thereby forming a sheath, bottom and lid formed by inwardly folded flaps, wherein the sheath is provided with an opening or removable portion for emptying content created in one or more walls. An example is a box forming a pack of unit packs, such as cans, provided on one longitudinal side wall with a zone that tears away from the pack, thereby forming an aperture for sequentially selecting the cans from the pack. The range of the zone is such that the cans are accessible throughout the package. Another embodiment consists in forming a tear-off zone in the top wall (over the entire width) and partly in the adjacent side wall of the package.

Also known is a transport and sales paper package, in particular for confectionery and the like, formed in the shape of a quadrilateral body, with a lower and upper base, where the bulk of the front wall and upper base are detachable and form a lid, also displaying the goods marking and detachable from the box. The resulting opening reveals almost the entire inside of the box.

A problem with packages with a removable portion formed over a considerable portion of the shell is that the package is not sufficiently strong and collapses. Packaging cannot be stacked in the open state.

The essence of the technical solution

Due to the characteristics of the known packaging, the technical problem encountered is the creation of a packaging that is inexpensive to manufacture and will be strong enough to protect its contents in the transport, storage and demonstration positions.

This problem is solved by a package according to the invention, which is composed of a single blank, for example of rigid paper, cardboard, corrugated board and the like, but also of a plastic material, optionally reinforced, allowing the packaging parts to be torn off gradually.

The cover with the detachable portion is formed in the form of a tetrahedral box assembled by successive folding or. by erecting one blank section, thereby forming a shell, a lid and a bottom from the inwardly folded bottom segments of the container sidewall and provided with a lock, the package having a detachable portion provided in the at least one container wall, and having the principle that the detachable portion is two-piece the first part is formed by a zone on a portion of the front wall segment separated from the remainder of the segment by a tear line in the form of an open letter U, further formed by triangular zones in the corner portions of the segments of both side walls separated from the remainder of said segments by tear lines and finally formed zones in the wolf segments of both side walls separated from the remainder of said segments by tear lines comprising a shaped gripping tab, the triangular zones in the corner portions of the segments of the two side walls extending away from the front wall segment d by at most one third of the length of the sidewall segments, and the second portion thereof by the remaining portions of the wolf segments of the two sidewalls of the wrapper and the back wall segment of the wrapper, and the top of the backsheet lid segment is provided with recesses located in the collapsed state of the wrapper.

The bottom of the package is formed by bottom segments connected over the fold lines to the segments of the container walls, where the segments of both side walls of the container each have a major lock portion and a connection portion to connect the side wall segment to the respective adjacent front wall segment and the back wall segment, wherein the portion includes one portion of the lock for joining the bottoms

The segment segment, consisting of an oblique leading edge and a short vertical edge, and a lower part of the main part is associated with a connecting portion with a base over a fold line connected to the side of the main portion, and wherein the connecting portion is connectable to the respective bottom segment. the front and rear walls of the container with their entire surface such that the upper side of the connecting portion abuts the bending line of the bottom segment of the front and rear wall of the container and the base of the coupling portion, respectively. its bending line lies from the left to the right side of the front and rear wall segments of the package.

It should be noted that the shape of the bottom of the package is not critical to the application of the present invention.

The detachable portion formed by the technical solution ensures that the packaging remains firm and retains its shape up to the last contained piece goods. The window extends into the lower part of the front wall of the container and is therefore within one third of the length of the side walls of the container and the container wall is sufficiently strong and dimensionally stable. The packaging lasts, without bending, transport and normal handling. It is also possible to store open boxes in several layers one above the other without the bottom boxes collapsing. It is also possible to form a larger window by tearing off the second part of the separable part of the package formed by the remaining parts of the wolf segments of the two side walls of the package. This creates a box opened above. The bottom of the segments connectable according to the invention allows easy, quick and reliable bottom sealing. A variety of materials such as solid paper, cardboard, cardboard, or plastic, possibly reinforced, metal foil, or corrugated board can be used to make the package.

The top box opening according to the invention relates to all the previously known lid and bottom closing systems of the box, which allow tearing off of packaging parts according to the invention. The strength of the package is greatly influenced by the suitably selected packaging material and the type of perforation selected, in particular the perforation of the tear line of the upper lid at its edges.

BRIEF DESCRIPTION OF THE DRAWINGS

An exemplary embodiment of the invention will now be described with reference to the drawings, in which Fig. 1 is a container blank, Fig. 2 is a closed box package, Fig. 3 is a folded container in its first opening, peeled off, and Figs. 4 folded packaging at the final stage of its opening, with both the window and the remaining wolf segments detached.

Examples of technical solutions

In the following, an exemplary embodiment of a package for piece products according to the invention will be described. The casing is in the form of a quadrilateral body, in particular a cuboid, which is simple to manufacture and most suitable for transport.

FIG. 1 shows the blank of the package. This includes, in the center of FIG. 1, a left-to-right direction, an end flap 5, a side wall segment 6, a front wall segment 2, a second side wall segment 3, and a back wall 4 segment. The flap 5 and the individual segments 4 to 4 are separated by fold lines 26, 32, 31 and 35.

The bending lines located between the individual segments of the container walls are designed to allow the adjacent segments to bend along these lines, substantially without deforming the respective segments. The best ways to do this are well known to those skilled in the art.

Downstream of the packaging wall segments 6, 3, 4, 4, bottom segments 20, 11, 10 for closing the package, i.e. forming the bottom of the package, are connected thereto via fold lines 20, 9, 8, 37.

The bottom segments 13 and 11 of the two side walls of the package are formed identically. They have two parts, a main part 44, 53 with a lock and a connecting part 44 ', 55' for connecting the bottom segment 13 and 11 with the respective adjacent front wall segment 12 and the back wall segment 10 of the container.

The main part 14, 15 always has, in view of FIG. 1, a lower side with a step in the form of one part of the lock for connecting the folded bottom segments 3, 12, 11, 10. Each part of the lock consists

-2CZ 11721 U1 from the inclined leading edge 39 and the short vertical edge 40. The right side of the main part 14, 15 is inwardly inclined. In its lower part, that is, at a distance from the fold line 20, 18, it is associated with a connecting portion 14 ', 15' having a pentagonal shape, the base of which is connected to the inclined right side over the fold line 17, 16.

The bottom and rear wall segments 12, 11 ' of the container are also shaped, the shape of which is always such as to allow attachment, for example by gluing, of the entire rear surface of the connecting portion 14 ', 15 ' . The relative position of the connecting part 14 ', 15' and the bottom segment 12, 10 in their connected state is such that the upper side 38 of the connecting part M ', 15' abuts the bending line 19, 37 of the bottom segment 12, 10 and the base of the connecting part 14 ', 15', respectively. its fold line 17, 16 lies, as seen in FIG. 1, from the left to the right side of the segment 12,10.

In the upward direction, as seen in FIG. 1, the cover segments segments 1, 2, 3, 4 are tied to the cover wall segments 1 through tear or fold lines. They are a segment 6 of the first side wall connected thereto through the tear line 27 and the fold line 28, further a front wall segment 7 connected thereto through the fold line 34, further a segment 8 of the second side wall attached thereto through the fold line 30 and the tear line 29 and finally, a rear wall segment 9 attached thereto via the tear line 36. The upper edge of the segment 9 is provided with two recesses 45, the purpose of which will be described below.

The detachable portion of the package forming the window for displaying the goods and removing it from the package is two-piece. The first part 33 is formed by a zone on the major part of the front wall segment 2 separated from the remainder of the segment 2 by a tear line 21 in the form of an open letter U, further formed by triangular zones in the upper corner portions of the segments 1, 3 of the two side walls separated from the remaining part of the segments 1, 3 by the tear lines 23, 22 and finally formed by zones in the wolf segments 6, 8 of the two side walls separated from the rest of the segments 6, 8 by the tear lines 41, 42 including the shaped gripping tab 24, 25, the triangular zones in the upper corner portions of the segments 1, 3 of the two side walls extend from the front wall segment 2 to a maximum of one third of the lengths of the sidewall segments 1, 3. The second portion of the detachable portion of the package is formed by the remaining portions of the lid segments 6, 8 of the two side walls of the package and the segment 4 of the back wall of the package.

The package blank is first brought into a partially collapsed flat form before using the package and filling it with the piece goods. In this case, the end flap 5 is attached, for example, adhered, to the inner side of the back wall segment 4 of the casing and the connecting portions 14 ', 15' of the bottom segments 13, 11 of the two side walls of the casing are connected with the rear surface by to the front surface of the front and rear wall segments 12, 10 of the package. Thus, the bottom segments 13, 12, H, 10 abut against the rear surfaces of the container wall segments 1, 2, 3, 4 and the front surface of the connecting portions 14 ', 15 with their rear surfaces folded around the fold lines 20, 19, 18, 37. folded around the fold lines 17, 16 abut against the front faces of the major portions 14, 15. The bottom segments 13, 12, 11, 10 are thus folded inwardly into the shell of the shell wall segments 1, 2, 3, 4, lid segments 6, 7, 8, 9 face upward and touch their inner surfaces.

Such a partially folded package blank is easily brought into a collapsed spatial state at any time by pressure on the side edges 43, 44 of the partially folded blank as shown in Figure 2. When such a pressure is exerted, the bottom segments 13, 12, U, 10 begin to diverge from the segments 1, 2, 3, 4 side panels. Both parts of the lock of the side wall bottom segments 13, 11 approach each other, and then shift against each other with their inclined leading edges 39 until they reach the locked position by snapping them in the short vertical edges 40 against each other. At this stage, a box-shaped container with an open lid has been formed, which can be filled with piece goods. Thereafter, the box is closed with a lid, by folding the rear panel lid segment 4 and the front wall panel segment 2 by and by folding the two side wall segments 1, 3 thereof, the recess 45 of the upper end side of the lid backing 4 being opposite the gripping tabs 24, 25 the first part 33 of the separable part of the package. The loose longitudinally adjacent sides of the folded segments 13 can be sealed with adhesive tape from above.

-3 CZ 11721 Ul

When using the package, the first part 33 of the detachable part of the package is first torn off by pushing the gripping tabs 24, 25 downward, the tabs 24, 25 being torn off, squeezing into the recess 45 and thereby allowing the first part 33 to be gripped and subsequently tear-off. A window is thus formed in the package, as shown in FIG. 3, which is large enough to present the goods and to conveniently select them from the entire box. The fact that the window extends into the lower part of the front wall of the container and within a maximum of one third of the length of the side walls of the container guarantees the strength and shape stability of the package. It is also possible to store such open boxes in several layers one above the other without the bottom boxes collapsing. It is also possible to form a larger window by tearing off the second part of the detachable portion of the package formed by the remaining portions of the lid segments 3 of the two side walls of the container and the segment 4 of the container end wall. This creates an open box as shown in Fig. 4.

Economic usability

The packaging is intended for the transportation, presentation and sale of small piece goods such as unit packs of food goods, such as soups, teas or sweets, as well as shampoos, toothpastes, but also ironmongery, and further end-user uses.

Claims (2)

PROTECTION REQUIREMENTS A tear-off package formed in the form of a quadrilateral box assembled by successively folding or straightening one blank of a blank to form a shell, a lid and a bottom of inwardly folded bottom segments of the sidewalls of the package, and provided with a lock, at least one wall of the packaging, characterized in that the separable part is two-part, its first part (33) being formed by a zone on a part of the front wall segment (2) separated from the rest of the segment (2) by a tear line (21) U, further comprising triangular zones in the corner portions of the segments (1, 3) of the two side walls separated from the rest of the segments (1, 3) by tear lines (23, 22) and finally formed by zones in the lid segments (6, 8) ) of both side walls separated from the rest of the segments (6, 8) by tear lines (41, 42) comprising a shaped grip The triangular zones of the killer portions of the segments (1, 3) of both side walls extend away from the front wall segment (2) to a maximum of one third of the length of the side wall segments (1, 3), and the second part thereof formed by the remainder of the lid segments (6, 8) of the two side walls of the package and the back wall segment (4) and the upper side of the lid segment (9) of the back wall of the package is provided with recesses (45) , 25). Packaging according to claim 1, characterized in that the bottom of the packaging is formed by bottom segments (13, 12, 11, 10) connected via fold lines (20, 19, 18, 37) to the segments (1, 2, 3, 4). container walls, wherein the segments (13, 11) of the two side walls of the container each have a lock main portion (14, 15) and a connecting portion (14 ', 15') for connecting the segment (13, 11) to the respective adjacent segment (12). ) a front wall and a back wall segment (10), each main part (14, 15) comprising one lock part for joining the bottom segments (13, 12, 11, 10), consisting of an inclined leading edge (39) and a short vertical an edge (40) and a bottom-side portion of the main body (14, 15) associated with a base portion (14 ', 15') via a fold line (17, 16) attached to the side of the body (14, 15), and wherein the connecting portion (14 ', 15') is connectable to the respective bottom segment (12,10) with its entire surface such that e, the upper side (38) of the connecting portion (14 ', 15') abuts the fold line (19, 37) of the bottom segment (12, 10) and the base of the connecting portion (14 ', 15') respectively. its bending line (17, 16) lies from the left to the right side of the segment (12, 10).