DE102020123551A1 - Cut for a bowl - Google Patents

Abstract

The blank (10) made of plastically bendable material that can be unfolded into a shell has a heart-shaped base, the two straight edge sections of which are bordered by side wall elements (36, 36'), which protrude beyond the arc-shaped structure of the heart shape and have protruding sections (38, 38'). . The side wall elements (36, 36') are connected to one another at their first ends (40, 40') and at their second ends (42, 42'), whereby the blank (10) is double-layered by folding along the score line (16) of the base can be arranged so as to be delivered to a customer. The side walls (36, 36') stand up automatically by opening the bottom. An inwardly protruding connecting element (45), which connects the second ends (40, 40') of the side wall elements (36, 36') to one another, can now be inserted into the gap between the two upper arches of the heart shape, where it can be secured, for example, by a Plug connection is anchored to the ground.

Description

The invention relates to a blank made of plastically bendable material that can be unfolded into a shell, the shell being, for example, a gift or goods presentation basket.

Such baskets are mostly made of cardboard material such as solid cardboard or corrugated cardboard. Sometimes, however, other materials are also used, namely plastic foils, which are plastically bendable just like cardboard material. The color designs of the blanks for such shells are varied and selected according to the desired design.

In addition to the color or pattern design of the blanks, their shape also plays a major role in the visual impression and acceptance of such bowls or baskets.

The object of the invention is to create a blank that can be folded out to form a shell and is made of plastically bendable material, with which a shell with a visually appealing design and shape can be unfolded.

• - einem ersten Bodenelement, das eine Herzform mit einem Rand aufweist, welcher zwei geradlinige erste und zweite Randabschnitte und zwei bogenförmig vorgewölbte dritte und vierte Randabschnitte aufweist,
• - wobei die ersten und zweiten Randabschnitte jeweils ein erstes Ende, an denen die beiden Randabschnitte aneinander angrenzen, und ein zweites Ende aufweisen,
• - wobei die dritten und vierten Randabschnitte jeweils ein erstes Ende, an denen sie aneinander angrenzen, und ein zweites Ende aufweisen, die jeweils an ein zweites Ende eines anderen der ersten und zweiten Randabschnitte angrenzen,
• - einer an dem ersten Bodenelement ausgebildeten Rillenlinie, die sich von den ersten Enden der ersten und zweiten Randabschnitte bis zu den ersten Enden der dritten und vierten Randabschnitte erstrecken und bezogen auf die die ersten und zweiten Randabschnitte und die dritten und vierten Randabschnitte jeweils symmetrisch zueinander sind,
• - einem streifenförmigen ersten Seitenwandelement, das längs des ersten Randabschnitts des ersten Bodenelements mit diesem verbunden ist, indem dieser erste Randabschnitt als Rillenlinie ausgebildet ist,
• - wobei das erste Seitenwandelement ein erstes Ende aufweist, das in Höhe des ersten Endes des ersten Randabschnitts des ersten Bodenelements angeordnet ist,
• - wobei das erste Seitenwandelement einen über das zweite Ende des ersten Randabschnitts überstehenden ersten Überstandsabschnitt mit einem dem ersten Ende abgewandten zweiten Ende des ersten Seitenwandelements aufweist,
• - einem streifenförmigen zweiten Seitenwandelement, das längs des zweiten Randabschnitts des ersten Bodenelements mit diesem verbunden ist, indem dieser zweite Randabschnitt als Rillenlinie ausgebildet ist,
• - wobei das zweite Seitenwandelement ein erstes Ende aufweist, das in Höhe des ersten Endes des zweiten Randabschnitts des ersten Bodenelements angeordnet ist,
• - wobei das zweite Seitenwandelement einen über das zweite Ende des zweiten Randabschnitts überstehenden zweiten Überstandsabschnitt mit einem dem ersten Ende abgewandten zweiten Ende des zweiten Seitenwandelements aufweist,
• - wobei die beiden Seitenwandelemente sich symmetrisch zu einer durch die Rillenlinie des ersten Bodenelements definierten Symmetrieachse erstecken und ihre jeweiligen Überstandsabschnitte aufeinanderzu gekrümmt verlaufen,
• - einem ersten Verbindungselement zur Verbindung der ersten Enden der ersten und zweiten Seitenwandelemente und
• - einem zweiten Verbindungselement zur Verbindung der zweiten Enden der ersten und zweiten Seitenwandelemente,
• - wobei bei an beiden Enden verbundenen Seitenwandelementen und ebenem ersten Bodenelement die Überstandsabschnitte der Seitenwandelemente außen um den dritten und den vierten Randabschnitt herum verlaufen.

To solve this problem, the invention proposes a blank that can be folded out to form a shell and has plastically bendable material, the blank being provided with

• - a first floor element, which has a heart shape with an edge, which has two straight first and second edge sections and two arched third and fourth edge sections,
• - wherein the first and second edge sections each have a first end, at which the two edge sections adjoin one another, and a second end,
• - wherein the third and fourth edge sections each have a first end at which they abut one another and a second end which each abut a second end of another of the first and second edge sections,
• - a line of grooves formed on the first floor member, extending from the first ends of the first and second edge portions to the first ends of the third and fourth edge portions and with respect to which the first and second edge portions and the third and fourth edge portions are symmetrical to each other ,
• - a strip-shaped first side wall element, which is connected to the first floor element along the first edge section of the latter, in that this first edge section is designed as a groove line,
• - wherein the first side wall element has a first end which is arranged level with the first end of the first edge section of the first floor element,
• - wherein the first side wall element has a first projecting section which protrudes beyond the second end of the first edge section and has a second end of the first side wall element which faces away from the first end,
• - a strip-shaped second side wall element, which is connected to the first floor element along the second edge section thereof, in that this second edge section is designed as a groove line,
• - wherein the second side wall element has a first end which is arranged at the level of the first end of the second edge section of the first floor element,
• - wherein the second side wall element has a second projecting section which protrudes beyond the second end of the second edge section and has a second end of the second side wall element which faces away from the first end,
• - wherein the two side wall elements extend symmetrically to an axis of symmetry defined by the groove line of the first floor element and their respective overhanging sections run curved towards one another,
• - a first connecting element for connecting the first ends of the first and second side wall elements and
• - a second connecting element for connecting the second ends of the first and second side wall elements,
• - Wherein the side wall elements are connected at both ends and the first floor element is flat, the overhanging sections of the side wall elements run around the outside around the third and the fourth edge section.

According to the invention, a material blank is proposed which, when unfolded, forms a heart-shaped shell. For this purpose, the blank has a first base element that has the shape of a heart. This is determined by a first and a second straight edge section, which taper towards one another. These two edge sections adjoin one another at their two first ends. The upper second ends of these two edge sections are connected to one another by a third and a fourth edge section, which in turn are arched forward. Between the two first adjoining ends of these third and fourth edge sections and the tapering lower end of the heart shape, an indented groove line extends on the base element, which serves as a fold line or crease line and in relation to which the two sides of the base element are designed symmetrically.

The raised edge around the heart-shaped bottom of the tray to be unfolded is formed by two side wall elements which also connect to the first and second edge sections via score lines. The first side wall element is therefore flexibly connected to the first edge section of the floor element via a first groove line, which is congruent with the first edge section and extends beyond the second end of the first edge section, with the side wall element forming a protruding section in this area, the free end of which forms a second end of the first side wall element, the first end of which is substantially flush with the first end of the first edge portion. In the same way, a second side wall element extends adjacent to the second edge section of the first floor element and along the second edge section so that it can be folded onto the floor element, this second side wall element also having a (second) overhanging section. Overall, when laid out flat, the blank forms a structure that is symmetrical to the axis of symmetry defined by the groove line of the first floor element.

The two side wall elements can be connected at their two ends by means of first and second connecting elements. The connection is typically made by gluing, although a connection by means of clamps or a plug-in connection is also possible.

In the connected state of the ends of the two strip-shaped side wall elements, the blank can be folded together, with the two halves of the heart-shaped first base element lying on top of each other and one side wall element resting on the outside of each of these two heart-shaped halves. The folded first floor element protrudes beyond the outer edges of the side wall elements. If the blank folded together in this way is unfolded, the base element is pressed into the side wall elements while the two side wall elements, which are connected to one another at their ends, expand, whereupon the second ends of the side wall elements are moved into the gap between the third and fourth edge sections in order to to be held. Due to a corresponding beveling of the transverse edges at the ends of the two side wall elements, when the blank is unfolded, they have a shape that widens conically upwards, which makes it possible for the first floor element not to slip down. In other words, when pressure is applied to the heart-shaped base, the side wall elements automatically form into two cut truncated circular cones, the tips of which branch downwards. The side wall elements thus correspond to a partial area of two cone shells. Due to the distance between the two side wall elements, which decreases downwards, the heart-shaped base can be supported from a certain height. This hold can be further reinforced with one or more projections on the edge sections of the first floor element, which dip into recesses in the side wall elements.

In an advantageous embodiment of the invention, provision can be made, for example, for the first ends of both side wall elements to have rectilinear end edges which, when arranged in a common plane with the first floor element, form an angle of less than 90° with one another or an angle of 75° to 88° with one another. The two second ends of the side wall elements also have rectilinear end edges which, when the blank is laid out flat, form an obtuse angle of 210° to 250° with one another. The degrees of angle under which the edges at the ends of both side wall elements run when the blank is laid out flat depend on the desired inclination of the side wall elements of the unfolded heart-shaped shell or the unfolded heart-shaped basket.

As already mentioned above, each side wall element has an outer edge extending along its entire length and an inner edge within its overhanging portion.

The respective corresponding ends of the side wall elements are connected to one another with connecting elements. With regard to the connection of the first ends of the side wall elements, this takes place by means of a connecting strap which is arranged, for example, at the end of one of the two side wall elements and protrudes from it. This connection tab can then be adhesively connected to the end of the relevant other side wall element.

The connection at the second ends of the side wall elements, which extend into the gap between the two curved edge sections of the first floor element when the heart-shaped shell is in the unfolded state, are connected to one another by a second connection element, which protrudes inwards from the side wall elements and is used as a pull tab, to pull the side wall elements in the area of their second ends into the upper gap of the heart shape. In this regard, it is advantageous if the second connecting element is formed by two identical connecting straps which protrude from the second ends of the two side wall elements and are intended to rest against one another. B. gluing, brackets, plugging or the like. can be connected to one another and, in the connected state, protrude from the adjoining second ends of the two side wall elements.

It is also expedient if the second connecting element has a fixing projection for fixing the second connecting element to the first floor element in an area adjacent to the first ends of the third and fourth edge sections, it also being advantageous for the fixing projection to be on the free end facing away from the side wall elements End of the second connecting element is arranged.

The protruding second connecting element is expediently fixed to the first floor element by inserting the fixing projection into a push-through slot in the first floor element. It can also be expedient here if the second connecting element has a stop for limiting the insertion of the fixing projection through the insertion slot.

A slot recess on the second connecting element for accommodating an edge region of the first floor element on the adjoining first ends of the third and fourth edge sections can ensure additional support.

If the second protruding connecting element is formed by connecting two connecting lugs protruding at the second ends of the side wall elements, it can advantageously be provided that each of the two connecting lugs has a fixing projection and, if present, a slot recess, with both fixing projections passing through the insertion slot of the first floor element are insertable.

In the case of larger-format bowls, it may be necessary for the second connecting element to be fixed to the bottom of the heart shape with increased security and holding power. For this purpose, according to an alternative embodiment of this second connecting element, it is provided that its free end has a T-shaped structure as a fixing projection, which has two laterally protruding side projections pointing in opposite directions and a central projection running at right angles to them and thus pointing to the free end of the second locking element and that the intermediate section of the second connecting element between the second ends of the side wall elements and the fixing projection as well as the fixing projection can be pushed through a cross-shaped insertion slot in the first base element.

It can also advantageously be provided here that the side projection and the central projection are provided with stops to limit insertion through the cross-shaped insertion slot.

Furthermore, it is expedient in this embodiment of the invention if the side projections and the central projection are formed by three essentially triangular or trapezoidal fold sections of each connecting flap that can be folded against one another and are arranged adjacent to one another, with each side projection being formed by a first to a second fold section of another of the two connecting flaps and the central projection is formed by two third folding portions which are arranged on each of the two connecting flaps, and wherein the folding portions of the connecting flaps are connected to one another by score lines.

It is also expedient that the stops are formed by cutouts along the groove lines of the two first and second folded sections, each forming a side projection, and by cutouts at the free end edge of the third folded section, and that the third folded sections of the two connecting flaps are connected to one another in abutting manner, specifically e.g. B. by gluing, stapling or plugging.

The intermediate section of the second locking element can now have a grip recess with which the heart-shaped basket or the heart-shaped bowl can be easily grasped and transported.

In a further advantageous embodiment of the invention, it is advantageous with regard to the stability of the unfolded shell if the third and fourth edge sections of the first base element each have at least one edge projection, with recesses for receiving the edge projections in both side wall elements extending along the third and fourth edge sections Side wall elements are formed.

With regard to an inclined position of the bottom of the shell, it is advantageous if this bottom rises slightly from the top of the heart shape to the upper curved edge sections. This can be achieved, for example, by a correspondingly inclined connection of the two side wall elements along the first and second edge sections of the first floor element. Overall, however, it can also be ensured that the inner edge of the overhanging sections of the two side wall elements runs obliquely and thus increases the width of the side wall elements in their overhanging sections. The unfolded shell rests on a base, for example a surface, along this inner edge of both side wall elements.

The shell can also be supported on the ground in the area where the side wall elements are connected to the first floor element. For this purpose, it is advantageously provided that the groove line of the first edge section of the first floor element is interrupted by a first incision line or is adjacent to a first incision line, by means of which a section of the first floor element near the edge is formed into a first projection connected in one piece to the first side wall element, and that the groove line of the second edge section of the first floor element is interrupted by a second incision line or borders on a second incision line, by means of which a section of the first floor element near the edge is formed into a second projection connected in one piece with the second side wall element. In the erected state of the side wall elements, the projections form feet that protrude downwards over the base element and preferably have sloping lower edges, so that the shell at the top of the heart shape rests with its first base element on the ground and, starting from there, at a distance from this top, next the the two projections forming the feet stand on the ground, in order to then support the shell on the ground in the area of the third and fourth curved edge sections via the inner edges of the overhanging areas of the side wall elements.

It is therefore advantageous if the width of the overhanging section of the side wall elements is greater than the width of the side wall elements in their sections extending along the relevant first and second edge sections, with each overhanging section at its end extending from the first or second edge section of the first floor element located inner edge is widened.

To stiffen the base of the shell, a second base element can advantageously be provided, which is designed essentially congruently with the first base element and is connected to it at the apex areas of both its third and fourth edge sections.

With the exception of the groove line forming the axis of symmetry and the connection of the first floor element to the side wall elements, the second floor element is designed to be congruent with the first floor element. It is expediently only glued or connected in some other way to the first floor element in an area that is located exclusively on one side of the groove line of the first floor element. This has the advantage that when the blank is folded together, the first floor element is still folded, but the second floor element in the heart-shaped half in which it is not connected to the corresponding heart-shaped half of the first floor element protrudes from the folded first floor element, specifically over its ridge line .

According to a further alternative of the invention, the blank expediently has a construction which makes it possible to divide the heart-shaped shell into a left and a right half in the unfolded state. For this purpose, according to an advantageous development of the invention, it is provided that the connecting element has an extension section which, in the unfolded state when the first and second ends of the side wall elements are connected, extends to or almost to the first ends of the side wall elements.

This, so to speak, continuous central bar of the heart-shaped shell can now advantageously be provided with a handle recess so that it can be carried with one hand.

A gripping end can be connected to the extension section of the connecting element.

According to a further advantageous embodiment of the invention, it is provided that on the outer edge of each side wall element in the area opposite the first or second edge section of the first floor element there is a hold-down and cover flap connected by a grooved line for folding over onto the inside of the from the side wall element projecting up from the floor element, in particular for fixing the first floor element and, if present, the second floor element and for covering the gripping ends adjoining the extension section of the connecting element.

• 1 ein erstes Ausführungsbeispiel eines flach ausgelegten Zuschnitts für eine herzförmige Schale,
• 2 bis 4 Darstellungen der Verarbeitung des Zuschnitts nach 1 zur Bildung eines zusammengefalteten Zuschnitts, der zur Herstellung der Herzformschale aufgefaltet und entmontiert wird,
• 5 eine Draufsicht auf den aufgefalteten Zuschnitt mit entmontiertem Rand zur Erzielung der Herzform,
• 6 ein zweites Ausführungsbeispiel eines flach ausgelegten Zuschnitts für eine herzförmige Schale,
• 7 bis 10 Darstellungen der Verarbeitung des Zuschnitts nach 6 zur Bildung eines zusammengefalteten Zuschnitts, der zur Herstellung der Herzformschale aufgefaltet und entmontiert wird,
• 11 eine Draufsicht auf den aufgefalteten Zuschnitt mit entmontiertem Rand zur Erzielung der Herzform,
• 12 ein drittes Ausführungsbeispiel eines flach ausgelegten Zuschnitts für eine herzförmige Schale und
• 13 eine perspektivische Ansicht auf den aufgefalteten Zuschnitt mit entmontiertem Rand zur Erzielung der Herzform.

The invention is described in more detail below using second exemplary embodiments and with reference to the drawing. In detail show:

• 1 a first embodiment of a flat blank for a heart-shaped bowl,
• 2 until 4 Representations of the processing of the cutting 1 to form a folded blank that is unfolded and disassembled to produce the heart-shaped shell,
• 5 a top view of the unfolded blank with the edge removed to achieve the heart shape,
• 6 a second embodiment of a flat-laid blank for a heart-shaped dish,
• 7 until 10 Representations of the processing of the cutting 6 to form a folded blank that is unfolded and disassembled to produce the heart-shaped shell,
• 11 a top view of the unfolded blank with the edge removed to achieve the heart shape,
• 12 a third embodiment of a flat-laid blank for a heart-shaped tray and
• 13 a perspective view of the unfolded blank with the edge removed to achieve the heart shape.

The drawing shows two exemplary embodiments of an unfoldable box made of plastically bendable material, both boxes being heart-shaped when unfolded. The plastically bendable material is preferably cardboard material and in particular solid cardboard material. Alternatively, the blank can also be made from a material other than cardboard, namely, for example, from plastic in the form of a plastic film.

The blank 10 after 1 has a double-walled heart-shaped base as the central element, which has a first base element 12 and a second base element 14 which is foldably connected thereto. The two floor elements are congruent and, with a few exceptions, identical in design.

The first floor element 12 has a groove line 16 which is also the axis of symmetry of the first floor element 12 . The bottom element 12 is also provided with a first edge section 18 and a second edge section 20, the two first ends 22 of which adjoin one another and form the point of the heart shape. The two edge sections 18 , 20 are straight and have second ends 24 . These second ends 24 are followed by two further edge sections, namely a third edge section 26 and a fourth edge section 28, which are arcuate and define the upper contour of the heart shape. The two edge portions 26, 28 are formed symmetrically to each other; the same applies to the formation of the edge sections 18, 20.

In the middle between the two edge sections 26, 28 are the second ends 30 which adjoin one another and form a gap between them. The second ends 32 of the two edge sections 26 , 28 connect to the second ends 24 of the two edge sections 18 , 20 .

In each of the edge sections 26, 28 of the first floor element 12, the second floor element 14 is flexibly connected, namely in the apex regions 34 of these edge sections 26, 28, so that this second floor element 14, as will be described later, folds onto the first floor element 12 leaves.

A first side wall element 36 extends along the first edge section 18 of the first floor element 12. This first side wall element 36 has a protruding section 38 which extends beyond the second end 24 of the first edge section 18 to the second end 42 of the first side wall element 36, whose first end 40 is aligned with the apex of the heart shape. The second end 42 of the first side wall element 36 is followed by a connecting strap 44 which will be discussed later.

A second side wall element 36 ′ is located along the second edge section 20 , axially symmetrical with respect to the groove line 16 , which, like the first side wall element 36 , has a protruding section 38 ′. Likewise, the second side wall element 36' has a first end 40' and a second end 42', which is followed by a second connecting strap 44'. Both side wall elements each have an outer edge 46, 46' which extends over the entire length of the relevant side wall element on the outside, while each side wall element 36, 36' has an inner edge 48, 48' on the inside of the respective overhanging section 38.

The blank 10 has a further connecting flap 50 which functions as a first connecting element 51 for connecting the two first ends 40, 40' of the side wall elements. In this exemplary embodiment, the further connecting strap 50 protrudes from the first end 40' of the second side wall element 36'. The two second ends 42, 42' of the two side wall elements can be connected to one another by means of the connecting straps 44, 44', these two straps being connected to one another in order then to function as a connecting element 45 protruding inwards from the two second ends 42, 42' (please refer 5 ).

Can be seen in 1 Furthermore, along the third and fourth edge section 26, 28 of the first floor element 12, edge projections 52 protrude which, as will be discussed later, in the unfolded state of the blank 10 (with side wall elements connected to one another at their ends) into recesses formed in the side wall elements 54 submerge.

Each connecting strap 44, 44' has a fixing projection 56, 56' which is arranged in a slot recess 58, 58' of the relevant connecting strap. The connecting strap 44 or 44' also has a gripping end 60, 60', on which the two interconnected connecting straps 44, 44' can be gripped with the fingers of one hand in order to wrap the side wall elements around the upper contour when the first floor element 12 is folded open to be able to pull the heart shape inward into the gap between the two bulges.

The individual steps for processing the blank 10 into a folded state, from which the heart-shaped shell is then formed by unfolding, are shown in FIGS 2 until 4 shown. In the 2 Areas shown hatched illustrate adhesive areas on the connecting elements or connecting straps and the two floor elements. The areas with single hatching illustrate areas that are to be glued on the top side in the respective top view, while the areas with cross-hatching in the respective top view show areas to be glued on the bottom side. In this way, one “heart half” of the first floor element 12 is glued to the corresponding heart half of the second floor element 14 resting on it. In the same way, the backs of the further connecting strap 50 and the first and second connecting straps 44, 44' are provided with adhesive. this is in 2 shown. In 3 shows how the two floor elements are connected to one another in the first gluing step. In a further step, the side wall elements are then erected in order to connect their two respective ends to the first and second connecting straps 44, 44' and the further connecting strap 50 to one another. Here, the first floor element 12 along the in 3 crease line 16 of the first floor element 12 shown for clarification, which is actually covered by the second floor element 14, so that after the two side wall elements 36, 36' have been folded, their ends lie against one another and are connected to one another by means of the aforementioned connecting straps. The situation then arises according to 4 . The heart mold half 62, which is in 4 is formed by the two heart-shape halves of the first base element 12 lying on top of one another and the heart-shape half of the second base element 14 connected to one of the two heart-shape halves of the first base element 12 . The other heart shape half 64 in 4 is formed by the "free" heart-shaped half of the second base element 14, which is not glued to the base element 12.

Starting according to the situation 4 can now be realized by unfolding the blank 10, the heart-shaped shell. For this purpose, the base is folded open, with which the two side wall elements 36, 36' stand up. The grasping ends 60, 60' are grasped and the connecting tabs 44, 44' are pulled into the gap 66 at the top of the heart shape. In this case, the fixing projections 56, 56' are located below the floor and are guided through a push-through slot 68 from below. This through-slot 68 is formed by two through-slots 68 aligned with one another in the two base elements. The slot recesses 58, 58' receive the base in the area adjoining the gap 66, which rests on the stop 59, 59' of the connecting lugs 44, 44' and is “enclosed” above and below. Finally, the edge projections 52 protrude into the recesses 54 of the side wall elements 36, 36'. This completes the construction of the shell.

Based on 1 Finally, it should be explained at which points along the side wall elements 36, 36' or at which points of the first base element 12 the shell rests on a substructure. It initially rests on the lower tip of the heart shape, namely on the underside of the first floor element 12. The shell rests in the area along the protruding third and fourth edge sections 26, 28 of the first floor element 12 (and thus also of the second floor element 14). the inner edges 48, 48' of the side wall members 36, 36'. In the area in between, ie in the area of the straight first and second edge sections 18, 20 of the bottom, there are separate projections 70, 70' provided as a support for the tray. These projections 70, 70' are created by incision lines 72, 72' which are introduced into the first base element 12 adjacent to the edge sections 18, 20. FIG. On either side of these incision lines 72, 72', score lines extend along the relevant edge portions for bending the side wall elements 36, 36' along the lower V-shaped part of the heart shape. When the side wall elements 36, 36' are bent up, the projections 70 stand up by protruding downwards over the first floor element 12 and thus form supporting feet. Finally, in the area of the first and second connecting straps 44, 44', they provide support for the floor.

In the 6 until 11 a second embodiment of a blank 10' is shown. Until the design of the second connecting tabs and the design of the through-slot, the blank 10' is the same as that of FIG 1 until 5 . To that extent are in the 6 until 11 those elements that are structurally or functionally identical to the elements of the blank 10 of 1 until 5 are, with the reference number of 1 until 5 designated.

The first and second connecting straps 44, 44' of the blank 10' are designed to be more stable than in the exemplary embodiment in FIG 1 until 5 . They also have recesses 74, 74', which together form a grip recess 74". 80' which are separated from one another by score lines 82, 82' 6 the folding sections 76, 78 or 76', 78' are bent away downwards through the plane of the drawing when the folding sections 80, 80' are pivoted in the direction of the intermediate sections 84, 84' in which the recesses 74, 74' are located . This unfolding takes place in that the connecting flaps 44, 44' are glued to one another in the area of their intermediate sections 84, 84' and in the area of their folded sections 80, 80' or are firmly connected in some other way. The further folding sections 76, 78 or 76', 78' are not connected to one another and thus stand up outwards to form two side projections 90, 90' (see FIG 11 ). The two folding sections 80, 80' form a central section 92 which protrudes at right angles and centrally in the middle of the two oppositely oriented side projections 90, 90' (see FIG 11 ) This construction forms the fixing projection.

Due to the redesign of the fixing projection 56 or 56', the push-through slot 68 in each of the base elements 12, 14 now also has a cross structure, as shown in FIG 6 can be seen.

The two interconnected connecting tabs 44, 44 'of the blank 10' of 6 now have a handle recess formed by the two recesses 74, 74'. As in the embodiment of 1 until 5 the fixing projection 56, 56' is inserted from below through the insertion slot 68 into the floor and now extends together with the intermediate sections 84, 84' through the cross-shaped insertion slot 68. The handle recess is now in the part above the floor. The two floor elements 12, 14 are also slotted between the push-through slot 68 and the gap between the upper curves of the heart shape, as a result of which two projections 86 are formed in each case, which dip into recesses 88, 88' in the connecting straps 44, 44' and thus the two floor elements 12, 14 additionally to the intermediate sections 84 of the two connecting straps 44, 44'.

the 7 until 10 12 show the various steps involved in producing the folded blank 10'. The areas with single hatching illustrate areas that are to be glued on the top side in the respective top view, while the areas with cross-hatching in the respective top view show areas to be glued on the bottom side. According to 7 one half of the heart shape of the first floor element 12 is glued in order to then fold the second floor element 14 onto the first floor element 12. The situation is as follows 8th .

In 9 1 shows how the various connecting flaps 44, 44', 50 are folded over in order to now be provided with glue on the hatched areas. The double-walled base (the base element 14 lies on the base element 12) is then folded down relative to the plane of the drawing, so that the two side wall elements 36, 36' are arranged one on top of the other so that they can now be glued together at the adhesive surfaces. The situation is as follows 10 .

Starting from 10 is now the folded blank 10, based on the plane of the 11 unfolded into this by pressing down on the bottom, whereby due to the side wall elements 36, 36' which are now firmly connected to one another, these stand up. The connecting tabs 44, 44' are grasped by hand and the projections 56, 56' are pushed through the push-through slot 68 from below, so that the side wall elements 36, 36' in their protruding sections 38, 38' lie around the upper contour of the heart shape and fixed to the bottom of the heart shape. The edge projections 52 get into the recesses 54 when the double-walled base is pressed down, while the projections 86 of the two base elements 12, 14 dip into the recesses 88 of the tabs 44, 44', which, however, in 11 is not recognizable. Also is in 11 the handle recess is not visible. pointed out in 11 but is on the recesses 74, 74 'in the two connecting straps 44, 44'.

As regards the support of the unfolded tray on a shelf, for example horizontal, the situation in the case of the tray is as follows 11 the same as in the case of the shell after 5 , so that in this respect reference can be made to the above description. The stops 59, 59' on the fixing projection are defined by the edges of recesses 94, 94' on the score lines 82, 82' between the first and second folding sections 76, 76', 78, 78' and by the one edge recess in the Closing edge 96, 96' of the third folding sections 80, 80' is realized. The top of the floor rests on the ground, as do the projections 70, 70' of the side wall members 36, 36' and their inner edges 48, 48'.

In the 12 and 13 a further exemplary embodiment of a blank 11 is shown in the form laid out flat and in the state unfolded to form a heart-shaped shell. The blank 10" is essentially identical to the blank 10 and 10' of the exemplary embodiments described above, with the exception of the design of the connecting strap. In this respect, the same reference numbers are used for the functionally and structurally identical elements of the blank 10" as for the blanks 10 and 10 ' in the 1 until 11 .

The second end 42, 42' of each side wall element 36, 36' is again followed by a connecting strap 44, 44', which has a fixing projection 56, 56' and a slot recess 58, 58'. An edge acting as a stop 59, 59' is also provided. In this respect, each connecting flap 44, 44' is essentially identical to the connecting flaps of the previously described blanks 10 and 10'. As with the connecting flaps 44, 44' of the blank 10', the connecting flaps 44, 44' of the blank 10'' have the 12 Recesses 74, 74' present. These recesses 74, 74' are located in an elongate extension section 98, 98' of the connecting strap 44, 44'.

The length of the connecting tabs 44, 44' is such that when the shell is assembled, they extend from the gap at the upper edge of the heart shape to the tip thereof. This completes the heart-shaped bowl, as in 13 can be seen divided into two parts. The gripping ends 60, 60' then lie on the insides of the side wall elements 36, 36' in the area of the areas adjoining their first ends 40, 40'. The gripping ends 60, 60' are covered by hold-down and covering flaps 100, 100', which are arranged adjacent to the first ends 40, 40' of the two side wall elements 36, 36' at their outer edges and are flexibly connected via score lines 101, 101' and retaining projections 102, 102'. With these retaining projections 102, 102', the hold-down and covering tabs 100, 100' engage in the slots located in the region of the projections 70, 70' between the side wall elements 36, 36' and the two first and second floor elements 12, 14 form when the side wall elements 36, 36' are erected and the projections 70, 70' protrude downwardly beyond the first and second floor elements 12,14. For this purpose, the straight edge sections of the heart-shaped second floor element 14 are provided with edge recesses 104 . The covering function of the hold-down and covering flaps 100, 100' is for the flap 100 in 13 implied.

Reference List

10

cutting

10'

cutting

10"

cutting

12

first floor element

14

second floor element

16

crease line

18

first edge section of the floor element

20

second edge section of the floor element

22

first ends of the first and second edge portions

24

second ends of the first and second edge portions

26

third edge section of the floor element

28

fourth edge section of the floor element

30

first ends of the third and fourth edge sections

32

second ends of the third and fourth edge portions

34

Apexes of the third and fourth edge portions

36

first side wall element

36'

second side wall element

38

Overhang portion of the first sidewall panel

38'

Overhang portion of the second side wall element

40

first end of the first sidewall member

40'

first end of the second sidewall member

42

second end of the first sidewall member

42'

second end of the second sidewall member

44

Connection tab on the first side wall element

44'

Connection tab on the second side wall element

45

second connector

46

Outer edge of the first sidewall panel

46'

Outer edge of the second sidewall panel

48

Inner edge of the overhang portion of the first sidewall panel

48'

Inner edge of the overhanging section of the second side wall element

50

another connecting strap

51

first connector

52

Edge projections on the first/second floor element

54

Recesses in the side wall elements

56

fixing projection

56'

fixing projection

58

slot recess

58'

slot recess

59

attack

59'

attack

60

touching

60'

touching

62

heart shape half

64

heart shape half

66

gap

68

through slot

70

Protrusion/foot of first sidewall member

70'

Protrusion/foot of second sidewall member

72

incision line

72'

incision line

74

recess

74'

recess

74"

handle recess

76

first folding section

76'

first folding section

78

second folding section

78'

second folding section

80

third folding section

80'

third folding section

82

crease line

82'

crease line

84

intermediate section

84'

intermediate section

86

Projections on the first/second floor element

88

recess

88'

recess

90

side protrusion

90'

side protrusion

92

center protrusion

94

Recess in crease line between first and second fold section

94'

Recess in crease line between first and second fold section

96

Final edge of the third folding section

96'

Final edge of the third folding section

98

extension section

98'

extension section

100

Hold-down and cover tab

100'

Hold-down and cover tab

101

crease line

101'

crease line

102

retaining projection

102'

retaining projection

104

Edge recess in the second floor element

Claims (24)

A blank made of plastically bendable material that can be unfolded into a shell, with - a first base element (12) which has the shape of a heart with an edge which has two straight first and second edge sections (18, 20) and two arched third and fourth edge sections (26, 28), - wherein the first and second edge sections (18, 20) each have a first end (22), at which the two edge sections (18, 20) adjoin one another, and a second end (24), - wherein the third and fourth edge portions (26, 28) each having a first end (30) where they abut one another and a second end (32) each terminating at a second end (24) of a different one of said first and second edge portions (18, 20) adjoin, - a groove line (16) formed on the first floor element (12) and extending from the first ends (22) of the first and second edge portions (18, 20) to the first ends (30) of the third and fourth edge portions (26, 28) and relative to the first and second edge portions (18, 20) and the third and fourth edge sections (26, 28) are each symmetrical to one another, - a strip-shaped first side wall element (36) which is connected to the first floor element (12) along the first edge section (18) of the latter by forming this first edge section (18) as a groove line - wherein the first side wall element (36) has a first end (40) which is arranged level with the first end (22) of the first edge section (18) of the first base element (12), - wherein the first side wall element (36) has a first projecting section (38) protruding beyond the second end (24) of the first edge section (18) with a second end (42) of the first side wall element (36) facing away from the first end (40), - a strip-shaped second side wall nd element (36') which is connected to the first floor element (12) along the second edge section (20) of the latter, in that this second edge section (20) is designed as a groove line, - the second side wall element (36') having a first end ( 40') which is arranged level with the first end (22) of the second edge section (20) of the first floor element (12), - the second side wall element (36') having a 20) protruding second projection section (38') with a second end (42') of the second side wall element (36') facing away from the first end (40'), - the two side wall elements (36, 36') extending symmetrically to a through the groove line (16) of the first base element (12) extend the axis of symmetry defined and their respective projecting sections (38, 38') curve towards one another, - a first connecting element (51) for connecting the first ends (40, 40') of the first and second Since end wall elements (36, 36') and - a second connecting element (51) for connecting the second ends (42, 42') of the first and second side wall elements (36, 36'), - wherein at both ends (40, 40', 42, 42') connected side wall elements (36, 36') and a flat first floor element (12), the projecting sections (38, 38') of the side wall elements (36, 36') on the outside around the third and the fourth edge section (26, 28 ) run around. crop after claim 1 , characterized in that the first ends (40, 40') of both side wall elements (36, 36') have rectilinear edges, the edges when the side wall elements (36, 36') are arranged in a common plane with the first floor element (12) form an angle of less than 90° between themselves or between 75° and 88°. crop after claim 1 or 2 , characterized in that each side wall element (36, 36') has an outer edge (46, 46') extending along its entire length and an inner edge (48, 48') within its overhanging portion (38, 38'). Cut after one of the Claims 1 until 3 , characterized in that the second connecting element (45) is formed by two identical connecting straps (44, 44') protruding from the second ends (42, 42') of the two side wall elements (36, 36') and intended to rest against one another at least partially by z. B. gluing, brackets, plugging or the like. can be connected to one another and, in the connected state, protrude from the mutually adjoining second ends (42, 42') of the two side wall elements (36, 36'). Cut after one of the Claims 1 until 4 , characterized in that the second connecting element (45) has a fixing projection (56, 56') for fixing the second connecting element (45) to the first floor element (12) in one of the first ends (30) of the third and fourth edge sections (26 , 28) adjacent area. crop after claim 5 , characterized in that the fixing projection (56, 56') is arranged on the free end of the second connecting element (45) facing away from the side wall elements (38, 38'). crop after claim 4 or 6 , characterized in that the first base element (12) has a push-through slot (68) into which the fixing projection (56, 56') of the second connecting element (45) can be pushed through. crop after claim 7 , characterized in that the second connecting element (45) has a stop (59, 59') for limiting the insertion of the fixing projection (56, 56') through the insertion slot (68). Cut after one of the Claims 5 until 8th , characterized in that the second connecting element (45) has a slot recess (58, 58') for receiving an edge region of the first floor element (12) at the mutually adjoining first ends (30) of the third and fourth edge sections (26, 28). crop after claim 4 and one of the Claims 5 until 9 , characterized in that each of the two connecting straps (44, 44') a fixing projection (56, 56') and, if present, a slot recess (58, 58'), both fixing projections (56, 56') being able to be pushed through the insertion slot (68) of the first floor element (12). crop after claim 4 or 5 and one of the Claims 6 until 10 , characterized in that the free end of the second connecting element (45) has a T-shaped structure as a fixing projection (56, 56'), which has two laterally protruding side projections (90, 90') pointing in opposite directions and one extending at right angles thereto and thus has a central projection (92) pointing towards the free end of the second connecting element (45) and that the intermediate section (84, 84') of the second connecting element (45) between the second ends (42, 42') of the side wall elements (36, 36' ) and the fixing projection (56, 56') and the fixing projection (56, 56') can be pushed through a cross-shaped push-through slot (68) in the first base element (12). crop after claim 11 , characterized in that the lateral projection (90, 90') and the central projection (92) are provided with stops (59, 59') for limiting insertion through the cross-shaped insertion slot (68). crop after claim 11 or 12 , characterized in that the side projections (90, 90') and the central projection (92) are formed by three essentially triangular or trapezoidal folding sections (76, 76', 78, 78', 80, 80') which can be folded against one another and are arranged adjacent to one another. of each connecting flap (44, 44'), each side projection (90, 90') being formed by a first and a second folded section (76, 76', 78, 78') of another of the two connecting flaps (44, 44') and the central projection (92) is formed by two third folding sections (80, 80') which are arranged on each of the two connecting flaps (44, 44'), and wherein the folding sections (76, 76', 78, 78', 80, 80') of the connecting straps (44, 44') are connected to one another by score lines (82, 82'). crop after Claim 14 or 13 , characterized in that the stops (59, 59') are formed by recesses (94, 94') along the groove lines (82, 82') of the two first and second folding sections (76, 76 ', 78, 78') and are formed by recesses on the free edge of the third folded section (80, 80') and that the third folded sections (80, 80') of the two connecting flaps (44, 44') are connected to one another in abutting manner, namely e.g. B. by gluing, stapling or plugging. Cut after one of the Claims 11 until 14 , characterized in that the second connecting element (45) has a handle recess (74, 74') in its intermediate section (84, 84'). Cut after one of the Claims 1 until 15 , characterized in that the third and fourth edge sections (26, 28) of the first base element (12) each have at least one edge projection (52), with recesses (54) in both side wall elements (36, 36') for receiving the edge projections (52 ) are formed in side wall elements (36, 36') extending along the third and fourth edge portions (26, 28). Cut after one of the Claims 1 until 16 characterized by a second floor element (14) which is formed substantially congruently with the first floor element (12) and is connected thereto at apex regions (34) of both of its third and fourth edge sections (26, 28). crop after Claim 17 , characterized in that the two floor elements (12, 14) can be connected to one another in an area arranged exclusively on one side of the groove line (16) of the first floor element (12), preferably by gluing, clipping or plugging. Cut after one of the Claims 1 until 18 , characterized in that the groove line of the first edge section (18) of the first floor element (12) is interrupted by a first incision line (72) or adjoins a first incision line (72) by means of which a section of the first floor element (12) close to the edge a first projection (70) connected in one piece to the first side wall element (36), and that the groove line of the second edge section (20) of the first floor element (12) is interrupted by a second incision line (72') or is connected to a second incision line ( 72'), by means of which a section of the first base element (12) near the edge is formed into a second projection (70') connected in one piece to the second side wall element (36'). Cut after one of the Claims 1 until 19 , characterized in that the width of the projecting section (38, 38') of each side wall element (36, 36') is greater than the width of the side wall element (36, 36') in its length along the relevant first and second edge sections (18, 20 ) of the first floor element (12). the section, each projecting section (38, 38') being widened at its inner edge (48, 48') located in the extension of the first or second edge section (18, 20) of the first floor element (12). Cut after one of the Claims 1 until 10 , characterized in that the connecting element (45) has an extension section (98, 98') which unfolds when the first and second ends (40, 40', 42, 42') of the side wall elements (36, 36') are connected extends to or near the first ends (40, 40') of the side wall members (36, 36'). crop after Claim 21 , characterized in that a handle recess (74, 74', 74") is formed in the extension section (98, 98'). crop after Claim 21 or 22 , characterized in that each connecting tab (44, 44') has an extension section (98, 98') and a gripping end (60, 60') adjoining the extension section (98, 98'). Cut after one of the Claims 1 until 22 , characterized in that on the outer edge (46, 46') of each side wall element (36, 36') in the area opposite the first or the second edge section (18, 20) of the first floor element (12) a grooved line (101 , 101') attached hold-down and cover flap (100, 100') for folding over onto the inside of the side wall element (36, 36') protruding from the floor element (12) facing the first floor element (12), in particular for fixing of the first floor element (12) and, if present, of the second floor element (14) and for covering gripping ends (60, 60') adjoining the extension section (98, 98') of the connecting element (45).

Images