ES2250300T3 - FOLDING BOX. - Google Patents

Abstract

Folding box (10.1; 100) with: - a bottom unit, - a cover unit and - a side wall unit provided between the bottom unit and the cover unit, where they exist - lower side wall elements (20; 120) respectively joined together by means of a first folding line (12) and having a first glue flap (50, 150) laterally, - where in each lower side wall element (20; 120) a bottom flap (16.1, 116) by means of a folding line of the lower edge (14), - where in each lower side wall element (20; 120) in the upper part a folding flap (18; 180), especially by means of an additional folding line (32; 132), - where in the folding flap (18; 180) a top folding flap of the cover (24) has been formed by the top an interior folding line (22), - where a wall element has been formed in the folding flap of the lid (24) upper lateral (30; 130) by means of a folding line of the upper edge (26), - where the upper side wall elements (30; 130) are respectively connected to each other through a second folding line (28) and where laterally there is a second glue flap (60; 160), - where the first folding line (12) and the second folding line (28) are located on a common imaginary line (42) and where in the folded state of the folding box (10.1 , 100) - the side wall elements (20, 30; 120, 130) form a polygonal contour structure, - the upper side wall elements (30; 130) can be folded outwardly around their edge folding line (26) upper and - the upper side wall elements (30; 130) can be partially fitted from the top on the lower side wall elements (20; 120) due to which, the folding flaps (18; 180) fold the cover fold flaps inwards (2 4) the lid unit of the folding box (10.1, 100) is deployed and formed by a partial hitch and where at least two upper side wall elements (30) facing in an unfolded state have an open recess (82) towards its edge characterized in that on two lower side wall elements (20) facing in an unfolded state and associated with the upper side wall elements (30) to the right and left of the upper area of connection of the folding flap (18) with the Side wall element (20) are provided folding lines that extend, inwardly essentially diagonally.

Description

Folding box.

Technical field

The present invention relates to a cardboard folding with a bottom, a cover and a planned wall unit between the bottom and the lid, where there are lower elements of wall joined together respectively through a first line folding and that have a glue flap on the side, in each bottom wall element has formed a bottom flap to through a fold line of the bottom edge, in each element bottom wall at the top, especially through an additional folding line, a flap of folded, in the folded flap at the top has formed a cover folding flap through a line of inside folding, in the cover folding flange is formed a upper wall element through a folding line upper, the upper wall elements are respectively linked together through a second folding line and laterally there is a glue flap, where the first line of folding and the second folding line are located on a straight line imagined common and for the folded state of the folding box the side wall elements form a contour structure polygonal, the upper wall elements can be folded towards the outside by means of its upper edge folding line and the upper wall elements can be fitted from above by zones on the lower wall elements, due to which the folding flaps fold inwards, the cover folding flanges and form, fitting them by areas, the folding box cover and where at least two wall elements upper side faces in deployed state have a open recess towards its edge.

Current technique

Foldable boxes are known with the above characteristics of the DE-A-2901616. In another kind of known execution, the bottom unit and the cover unit are designed as a single folding piece with insert flaps that fold and insert when the side walls are raised with the In order to close the folding box. In addition, folding boxes are known whose cover units or bottom units are formed by several folding flaps on the bottom or lid.

Exhibition of the invention

The present invention is based on the problem technician or in order to provide a folding box that ensure a safe and stable preservation of the disposed product in the folding box, making possible an economical manufacture and a simple deployment and filling process, and that makes possible a simple and original opening and closing process, operating Reliable durable lid unit and offer handling Especially simple when opened.

The folding box according to the invention is obtained with the characteristics of the independent claim 1. Object of dependent claims are configurations and developments advantageous

The folding box according to the invention is characterized therefore because in two side wall elements, facing, folded, to the right and left of the upper zone of folding flap joint of the side wall element, there are fold lines that extend to the essentially diagonal inside.

A preferred configuration is characterized in that the first and / or the second glue flap is / are designed as wall element, where the contour and the surface correspond essentially to the contour and surface of the wall element adjacent lower or upper side joined through a first folding line or a second folding line.

Because the first and / or second flap of glued is / are designed / s as a wall element you get a Extremely robust folding box. At the same time it remains guaranteed economic manufacturing and the simple process of folded or unfolded.

An especially preferred configuration that satisfies high resistance requirements, it stands out because the lower and upper side wall elements are designed as narrow rectangular surfaces, especially with lengths that differ slightly.

To ensure a lasting reliable function of the opening or closing the lid by a relative displacement of the lower and upper side wall elements, a Especially advantageous configuration is characterized because the distance of the first folding lines of the elements of lower side wall is slightly less than the distance of the second fold lines of the side wall elements superior.

Of particular advantage is when the first glue flap opposite diametral and laterally to the second glue flap.

A particularly preferred configuration of the folding box according to invention is characterized in that the line upper edge folding is arranged parallel to the inside folding line, because the height of the folding flap of the cover, that is the distance of the interior folding line and of the folding line of the upper edge, is less than or equal to the distance of two facing side wall elements for the folded state of the folding box, because the folding flap of the cover and the folding flap have essentially an outline in Trapezoid shape with a common interior folding line. From Preferably, the inner folding line starts at a distance facing the imaginary common line of the first and second lines folding, which corresponds essentially to half the width of the side wall elements.

The folding box according to the invention allows without transformation problems with an outer cross section polygonal of equal sides. The cover folding flaps can form here, in the folded state, a closed lid unit or fold according to geometric dimensions so that in the center you get a recess with a polygonal contour.

An advantageous configuration of the folding box according to the invention, which guarantees a simple deployment process and a robust construction of the box, stands out because the length of the folding flap, that is the distance between the forming in the inner side wall element and the folding line inside is so large that in the folded state of the folding box, it is say with folded flap folded inward or curved from convex inward shape, the height of the folding flap perpendicular projection on the side wall element upper is less than the height of the side wall element higher.

With such a design the flap of folding is guaranteed that the corresponding inner wall of the upper side wall elements are fitted, so that can be released, on the outer wall of the corresponding Bottom side wall element after placing it by sliding on the outer wall.

An economical manufacturing is guaranteed because the folding box can be produced with cardboard cut out in only one piece.

Other types of execution and advantages of the invention result from the characteristics indicated, in addition, in the claims, as well as the execution examples indicated to continuation. The characteristics of the claims may combine with each other in any way as long as they are not excluded in an obvious way.

Brief description of the drawing

The following are described and explained more in detail the invention as well as types of execution and developments advantageous thereof with the help of the examples represented in the He drew. The characteristics that can be seen in the description and in the drawing can be applied according to the invention individually or in any combination of several of them. They show:

Figure 1, the cardboard cut for a box folding with a square cross section, with elements of upper and lower side walls and cover folding flaps and folding flaps arranged between the wall elements, and with bottom flaps formed at the bottom.

Figure 2, a schematic view of the section according to figure 1 partially folded, and then in a crushed state with glue flaps attached.

Figure 3, a schematic representation of the folding box according to the cut of figure 1 with wall elements folded sides.

Figure 4, a schematic representation in perspective of the folding box with the cut according to figure 1 during the closing process, i.e. with wall elements superiors partially displaced in the direction of the elements of lower wall.

Figure 5, a schematic representation of the folding box according to figure 4 in fully folded state, closed.

Figure 6, a schematic cross section of the folding box according to figure 5 without representation of the wall and flap elements located behind.

Figure 7, a schematic cross section through a folding box with a lid design of another type without representation of the wall and flap elements located by behind.

Figures 8a, 8b and 8c, a representation of schematic section of the side wall area of the box folding according to figures 1 to 6 in different states of creased.

Figure 9, a section of a second variant of execution of a folding box with side wall elements designed as narrow rectangles with glue flaps configured as wall elements.

The figures, 10 to 13, a folding process of the cut according to figure 9 to a flat state for transport.

Figure 14, a detailed perspective schematic of the folded folding box according to figure 13 with the Open lid.

Figure 15, a perspective representation schematic of the folding box according to figure 14 with cover closed.

Methods for executing the invention

The structure of a first type of execution of a 10.1 folding box is explained below with the help of the representation of the cut according to figure 1. In total there are four Sidewall areas whose design in principle is the same. Starting from four lower wall elements 20 joined together by vertical folding lines and having the width B1 between the folding lines, has been formed at the bottom in the bottom wall element 20 a bottom flap 16.1 essentially in the form of a trapeze along a lower folding line of the edge 14. The left side of the trapezoid 44 of Figure 1 has a almost 90º angle facing the edge folding line lower. The right side of the trapezoid 46 has a further inclination flat. On every two bottom flaps 16.1 with a height greater than trapezoid has formed on the most inclined side of trapezoid 46 a glue flap 38.1 along a fold line 48, which it is glued in each case on the adjacent bottom flap 16.1. At lower left side wall element 20 of figure 1, is has formed on the left edge, a first glue flap 50 which, by folding the lower side wall elements 20 is glue on the side wall element 20 shown in figure 1 on the right. By joining the 16.1 bottom flaps through glue flaps 38.1, a bending of automatically occurs the 16.1 bottom flaps during the deployment process of the bottom wall elements 20 forming a bottom unit closed.

In the upper part it has been shaped in each side wall element 20 a folding flap 18 designed as flexible flap 18 in which it has been shaped along an inside fold line 22 a cover fold flap 24. In the upper part it has been formed in the folding flap of the cover 24 an upper side wall element along a fold line of upper edge 26. Wall elements adjacent upper lateral 30 are joined together along a top fold line 28 and have a width B2 that corresponds essentially to the width B1 of the lower wall element 20. In the upper left side wall element 30 of the Figure 1 has formed a second glue flap 60 along of a folding line 28. The folding flap of the cover 24 and the flexible flap 18 attached through the inner fold line 22 common, they essentially have an outer contour in the form of trapezoid, where the left outer edge 26 in figure 1 of the Flexible flap 18 has a slight convex curved area.

The distance between the inside fold line 22 and the folding line of the upper edge 26, ie the height of the folding flap of the cover 24 bears the reference H1 in the Figure 1.

Due to the chosen geometry, the corresponding lower fold lines 12 and the corresponding upper fold lines 28 are arranged in a common imaginary line 42 represented with dashed line in the Figure 1. The inner fold line 22 and, therefore, the right outer contour of the flap of the cover 24 shown in Figure 1 and the flexible flap 18 is designed so that distance A from the beginning of the interior folding line 22 facing the imaginary line 42 corresponds to the height H1 of the cover folding flap 24.

To ensure a deployment development without problems, the height H1 of the folding flap of the lid 24 is less than or equal to half the width B2 of the side wall element upper 30. Flexible flap 18 has, parallel to the line interior folding 22, stamped lines 32 arranged in the part exterior that help the convex bending process when deploying the folding flaps of the lid inwards.

The height of the flexible flap 18, that is the distance between the beginning of the forming in the wall element lower side 20 (straight 41 represented in dashed line) facing the inner fold line 22 bears the reference H3. The height of the upper side wall element 30, ie the distance between the upper folding line 26 from the edge and the edge The upper side wall element 30 bears the reference H2. To ensure a reliable deployment process, the two H2 heights or H3 must have predetermined dimensions what is describe later.

To fold the folding box 10.1 proceed Now as follows. First the glue flaps are glued 38.1 with the corresponding adjacent bottom flaps. The upper side wall elements 30 fold along their upper edge folding line 26 outward over the cover folding flaps. Then fold the lower and upper side wall elements 20, 30 by means of their corresponding folding lines 12, 38 so that can glue the flaps 50 and 60 with the corresponding side wall element 20, 30 opposite. Then the glued cut until it is flat, according to the representation of the Figure 2, that is to say two lateral wall areas are arranged in Each case side by side. In this flat state you can transport the foldable box from the manufacturer of the folding box to the next processor or the company that fills it.

The unfolding of the folding box 10.1 itself is now produces in a first step in which the side wall elements 20, 30 by means of their folding lines 12, 28 to form a square cross section contour (figure 3). Here the background flaps are automatically displayed 16.1, fitting each other by zones to form a closed unit From the bottom. In this state according to figure 3 the box can be filled folding 10.1 from above without problems with the product to Introduce.

After filling or the introduction of product closes the folding box 10.1 applying a pressure from above the fold lines of the upper edge 26 because of what which upper side wall elements 30 move towards below, at the same time the flaps are curved inwards flexible 18 in a convex manner and thus the flaps of folding the cover 24 from the inside outwards, hook by zones and form in a final state (figure 5) a cover unit closed. In this final state according to figure 5, the elements of upper side wall 30 are fitted by zones with their zone of the lower edge (folded state) by external clamping on the lower side wall elements 20 so that it achieves a closing state by tightening lock. To open the folding box 10 side wall elements move higher 30 against the effect of tightening up due to which unfolds the folding flaps of the cover 24 and the flexible flaps 18 and an upward opening is produced for the product extraction.

In the schematic section representation cross section according to figure 6 you can see the dimensions Relevant wall elements and flaps. For ensure a tightening effect of the side wall elements upper 30 fitted on the side wall elements lower 20, it is necessary that the height H3 of the flaps flexible 18 in the folded state of the folding box 10, that is in convex curved state of the flap 18, with a projection perpendicular to the upper side wall elements 30, results in a height H3 'that is less than the height H2 of the upper side wall elements 30. This ensures a overlapped by areas of the lower edge area of the elements of upper side wall 40 with side wall elements bottom 20 to obtain a tightening lock joint.

In figure 7 it has been represented schematic in cross section another variant of execution in the that the height H1 of the flaps of the cover 24 is less than half of width B2 of the upper side wall elements 30. Thus produces in an folded state an opening 70 in the upper part of so that the product introduced can be recognized from above. In addition, it is possible that the lower wall elements or upper have a hole in your wall through which you can partially view the product introduced.

In the first and third side wall element 20 seen from the left in figure 1 exists in each of the areas of the upper right and left lateral edge, in the area of connection of flexible flaps 18, in each case a line of folded 80 stamped diagonally inwards. The same time there is an open gap 82 in the first and third element of upper side wall 30, seen from the left in Figure 1, in the free edge area of the upper side wall element 30. The area of the side wall elements 20 located between the end of the diagonal fold lines 80, is represented by dotted line in figures 1 and 5 and bears the reference D.

The fold lines 80 in connection with the gap 82 corresponding provide essential improvement as far as to the opening process. That is, the 10.1 folding box can open by a simple pressure on the zones D of two walls opposite sides 20. The diagonal 80 fold lines help the bending process inside the folding box when applying a pressure in zone D. Thus, the upper area of the folding box 10.1 with flexible flap 18, folding flap of lid 24 and of the upper side wall elements 30 "jump" opening up.

In an example of execution not represented the height H3 of flexible flap 18 and height H1 of flap Folding the lid have the same design, that is, in state folding the flexible flaps 18 and the folding flaps of the lid 24 rest flat on each other and the flexible flap 18 has no curves.

In the case of relatively folding boxes Lightweight of a small volume, the opening process, therefore, It can be done without problems with one hand.

In figure 9 a second is represented execution variant of a cut of a folding box 100 whose structure resembles, in principle, the folding box 10.1 previously described. Folding lines with the same function They carry the same reference and are not explained again.

The difference is that the elements of lower side wall 120 and side wall elements upper 130 are made as rectangular surfaces narrow, where the length L1 of the side wall elements lower 120 is somewhat greater than the length L2 of the elements of upper side wall 130. In addition, the upper part has formed in the lower side wall elements 120 a respective folding flap 180 by means of a folding line 132, where the folding flap 180 remains flat in state folding of the folding box 100, that is to say it has no curvature. The height H3 of the folding flap 180 corresponds to the H1 height of the cover folding flap 24.

The bottom unit is formed by four flaps of background 116.1, 116.2, 116.3, 116.4 formed in the elements of lower side wall 120, bottom flaps forming a unit closed in folded state.

In addition, the distance A1 of the folding lines 12 of the lower side wall elements 120 has been chosen somewhat less than the distance A2 of the fold lines 28 of the upper side wall elements 130 so that the contours formed by the side wall elements 120, 130 they can overlap each other without problem in the deployed state of the 100 folding box.

An essential difference opposed to the box folding 10.1 described above, consists in that a first glue flap 150, in figure 9 in the edge area left of the lower left side wall element 120 by middle of the folding line 12, which is designed as an element of wall with, in principle, the same contour and the same surface as the adjacent lower side wall element 120. Diametrically opposite, according to figure 9, has been formed laterally in the upper side wall element 130 right a second flap of glued 160 by means of the fold line 28, flap that also it is made as a wall element that has the same contour and the same surface as the upper side wall element 130 adjacent right. In the folded state a folding box results extremely resistant due to glue flaps 150, 160 made as wall elements.

In figures 10 to 13 the different folding processes to fold the cut according to the figure 9 until a flat state for transport is achieved.

First they fold back (figure 10) the upper side wall elements 130 with the flap of glued 160 by means of the folding lines 26. Then it is fold the first glue flap 150 by means of the line of folded 12 left according to figure 12 on the wall element adjacent lower side 120 (figure 11).

The two elements of the following are folded lower side wall 120, arranged on the left according to the Figure 11, with corresponding side wall elements upper 120 and the glue flap 150 by means of the line of central folding 12, where the first glue flap 150 is glued with the side wall element 120, arranged on the right according to Figure 11. This state is represented in Figure 12.

Then the second glue flap 160 is folded by means of the folding line 28 on the wall element adjacent upper 130 and sticks with it. This state is represented in figure 13. The state according to figure 13 represents the state of flat folding for transport, that is in this state the manufacturer of the folding box supplies the same folded flat to the company that fills it.

Applying a pressure (arrow D in figure 13) on the outer side edges of the box folded in shape flat, the folding box is deployed and by means of the corresponding folding of the bottom flaps 116.1, 116.2, 116.3, 116.4 is formed a closed bottom.

The displayed status is represented in perspective in figure 14. The folding flaps of the cover 24 and the folding flaps 180 have not yet been retracted, that is, the Cap unit to be formed by these flaps is still open. In this state, the folding box 100 can be filled. After fill the folding box 100 the lid unit is closed by shifting the side wall elements lower 120 relatively deployed to wall elements upper side 130 in the direction of the arrow P. Because of this, the folding flaps of the cover 24 and the folding flaps 180 are fold back inwards, due to which a unit is obtained closed lid, which can be seen in perspective in the figure fifteen.

Due to the design of the glue flaps 150 or well 160 as wall elements you get a folding box extremely resistant

Claims (10)

1. Folding box (10.1; 100) with:

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a background unit,

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a cap unit and

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a side wall unit provided between the bottom unit and the cap unit, where they exist

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lower side wall elements (20; 120) respectively linked together by means of a first folding line (12) and that have a first flap laterally glued (50, 150),

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where in each lower side wall element (20; 120) it has been formed a bottom flap (16.1, 116) by means of a line of folding the bottom edge (14),

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where in each lower side wall element (20; 120) in the part upper has formed a folding flap (18; 180), especially by means of an additional folding line (32; 132),

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where on the folding flap (18; 180) on the top it has formed a cover folding flap (24) by means of a inside fold line (22),

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where an element has been formed in the folding flap of the lid (24) of upper lateral wall (30; 130) by means of a line of folding the upper edge (26),

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where the upper side wall elements (30; 130) are respectively joined together through a second line of folding (28) and where laterally there is a second flap of glued (60; 160),

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where the first fold line (12) and the second fold line (28) they are located on a common imaginary line (42) and where in folded state of the folding box (10.1, 100)

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the side wall elements (20, 30; 120, 130) form a structure polygonal contour,

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the upper side wall elements (30; 130) can be folded outward around its edge folding line (26) superior and

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the upper side wall elements (30; 130) can be fitted partially from the top over the wall elements lower lateral (20; 120) due to which, the flaps of folded (18; 180) fold inwards, the flaps of folding the lid (24) unfold and form by means of a hitch partial cover unit of the folding box (10.1, 100) and where, at least two upper side wall elements (30) facing each other in an unfolded state they have an open recess (82) towards their edge

characterized in that on two lower side wall elements (20) facing in an unfolded state and associated with the upper side wall elements (30) to the right and left of the upper area of connection of the folding flap (18) with the element of side wall (20) are provided folding lines that extend, inwardly essentially diagonally. 2. Folding box according to claim 1, characterized in that the diagonal folding lines (80) are made as stamping lines. 3. Folding box according to claim 1, characterized in that the recess (82) is arranged in the center of the upper side edge. 4. Folding box according to one or more of the preceding claims characterized in that the first glue flap (150) and / or the second glue flap (160) is formed as a wall element, whose perimeter and surface contour essentially correspond to the peripheral contour and to the surface of the adjacent lower or upper side wall element (120, 130) joined by means of a first folding line (12) or a second folding line (28). 5. Folding box according to claim 4, characterized in that the lower and upper side wall elements (120,130) are made as narrow rectangular surfaces, especially with slightly different lengths (L1, L2). 6. Folding box according to claim 4 or 5, characterized in that the distance (A1) between the first folding lines (12 ') of the lower side wall elements (120) is slightly smaller than the distance (A2) of the second fold lines (28) of the upper side wall elements (130). 7. Folding box according to one or more of claims 4 to 6, characterized in that the first glue flap (150) is arranged diametrically and laterally facing the second glue flap (160). 8. Folding box according to one or more of the preceding claims, characterized in that:

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the upper edge folding line (26) is arranged parallel to the inside fold line (22),

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the height (H1) of the cover folding flap (24) ie the distance between the inside fold line (22) and the line of folding of the upper edge (26) is less than or equal to the distance of two side wall elements (30) facing each other in folded state of the folding box (10.1, 100),

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the cover folding flap (24) and folding flap (18) have essentially a trapezoid contour with a line common interior.

9. Folding box according to claim 5 and / or 6, characterized in that the length (H3) of the folding flap (18), ie the distance between the formation point of the inner side wall element (20) and the line The inside folding (22) is sized so that in the folded state of the folding box, that is, with the folding flap (18) folded inwards or curved inwards convexly, the height (H3 '), projected perpendicularly on the upper side wall element (30), of the flexible flap (18) is less than the height (H2) of the upper side wall element (30). 10. Folding box according to one or more of the preceding claims, characterized in that the folding box is formed in one piece by a cardboard cut.