Hinged-Lid Box

Abstract

A folding box having a lower part and a hinged lid positionable relative to the lower part to a closed position of the folding box. The lower part having a bottom wall, a plurality of side walls, and a plurality of dust flaps. At least one of the plurality of side walls has an upper edge comprising a free edge and is arranged between two adjacent side walls having an upper edge foldably connected to a dust flap. The hinged lid has a top wall foldably connected to one of the plurality of side walls and at least one insertion tab. The at least one insertion tab is for insertion into a gap between that at least one of the plurality of side walls with the free edge and the dust flaps of the two adjacent side walls when the hinged lid is in the closed position.

Claims

1. A folding box comprising: a lower part having a bottom wall, a plurality of side walls which are inclined outwardly and are connected to the lateral edges of the bottom wall by lower fold lines, the plurality of side walls forming an opening of the lower part, corner joints between adjacent side walls of the plurality of side walls, the corner joints comprise two respective triangular tabs, which are connected to one another at a central fold line and each of which is connected to a lateral edge of one of the adjacent side walls by an outer fold line, wherein the triangular tabs are folded around the central fold line against one another and against one of the adjacent side walls and are adhesively bonded to the one of the adjacent side walls, a plurality of dust flaps respectively connected to a respective one of the plurality of side walls by a respective upwardly bent upper fold lines to form an upwardly bent upper of the respective one of the plurality of side walls, and at least one of the plurality of side walls has an upper edge comprising a free edge, the at least one of the plurality of side walls is arranged between two adjacent side walls having a respective upwardly bent upper edge connected to a respective one of the plurality of dust flaps and a hinged lid having a top wall which is connected to an upper edge of one of the plurality of side walls by an upper fold line, and at least one insertion tab, which is connected to the top wall by a lateral fold line, when the dust flaps are folded into the opening of the lower part, the hinged lid is for being folded over the opening and the at least one insertion tab is for insertion in a gap between the at least one of the plurality of side walls with the free edge and the dust flaps of the two adjacent side walls.

2. The folding box of claim 1, wherein the number of corners of the bottom wall and the top wall are equal.

3. The folding box of claim 1, wherein the top wall is larger than the the bottom wall.

4. The folding box of claim 1, wherein the plurality of side walls comprises a side wall opposite the one of the plurality of side walls connected to the top wall having an upwardly bent upper edge which is connected to a dust flap of the plurality of dust flaps by an upwardly bent upper fold line, the two side walls adjacent to the side wall opposite the one of the plurality of side walls connected to the top wall each have an upper edge comprising a free edge and the at least one insertion tab comprises two insertion tabs and the lateral fold line comprises two lateral fold lines, a respective one of the two lateral fold lines is adjacent a respective upper edge of the two side walls adjacent to the side wall opposite the one of the plurality of side walls connected to the top wall when the hinged lid is closed.

5. The folding box of claim 1, wherein the plurality of side walls comprises two side walls adjacent to the one of the plurality of side walls connected to the top wall having upwardly bent upper edges, which are connected to a respective dust flap of the plurality of dust flaps by upwardly bent fold lines.

6. The folding box of claim 1, wherein the upper edge of the at least one of the plurality of side walls is straight.

7. The folding box of claim 1, wherein the top wall has respective lateral edges, when the hinged lid is closed, the lateral edges of the top wall are adjacent respective upper edges of the plurality of side walls.

8. The folding box of claim 7, wherein at least one of the lateral edges of the top wall is convexly bent.

9. The folding box of claim 1, wherein the triangular tabs are adhesively bonded to the one of the adjacent side walls with glue.

10. The folding box of claim 1, wherein the corner joints comprise a first corner joint comprising a first pair of triangular tabs and a second corner joint comprising a second pair of triangular tabs the first pair of triangular tabs and the second pair of triangular tabs are folded against the one of the adjacent side walls.

11. The folding box of claim 10, wherein the first pair of triangular tabs and the second pair of triangular tabs are folded against the one of the plurality of side walls which is connected to the top wall at the upper fold line.

12. The folding box of claim 11, wherein the corner joints further comprise a third corner joint comprising a third pair of triangular tabs and a fourth corner joint comprising a fourth pair of triangular tabs, the third pair of triangular tabs and the second pair of the triangular tabs are folded against the at least one of the plurality of side walls having the free edge.

13. A folding box comprising a lower part and a hinged lid positionable relative to the lower part to a closed position of the folding box, the lower part comprising a bottom wall, a plurality of side walls foldably connected to the bottom wall and positionable relative to the bottom wall to form an interior space of the folding box, a plurality of dust flaps respectively foldably connected to a respective one of the plurality of side walls, the plurality of side walls forming an opening of the interior space at respective upper edges of the plurality of side walls, at least one of the plurality of side walls has an upper edge comprising a free edge, the at least one of the plurality of side walls is arranged between two adjacent side walls having an upper edge foldably connected to a respective one of the plurality of dust flaps, and the hinged lid comprising a top wall foldably connected to an upper edge of one of the plurality of side walls and at least one insertion tab foldably connected to the top wall, the at least one insertion tab is for insertion into a gap between that at least one of the plurality of side walls with the free edge and the dust flaps of the of the two adjacent side walls that are folded into the opening when the hinged lid is in the closed position.

14. The folding box of claim 13, wherein the plurality of side walls are inclined outwardly relative to the bottom wall.

15. The folding box of claim 13, wherein the lower part further comprises corner joints between adjacent side walls of the plurality of side walls, the corner joints comprise two respective triangular tabs.

16. The folding box of claim 15, wherein the two respective triangular tabs are foldably to one another at a central fold line and each of two respective triangular tabs are connected to a lateral edge of one of the adjacent side walls by an outer fold line.

17. The folding box of claim 16, wherein the triangular tabs are folded around the central fold line against one another and against one of the adjacent side walls.

18. The folding box of claim 17, wherein the triangular tabs are adhesively bonded to the one of the adjacent side walls.

19. The folding box of claim 13, wherein the plurality of side walls comprises a side wall opposite the one of the plurality of side walls connected to the top wall having an upper edge which is connected to a dust flap of the plurality of dust flaps by, the two side walls adjacent to the side wall opposite the one of the plurality of side walls connected to the top wall each have an upper edge comprising a free edge.

20. The folding box of claim 19, wherein the at least one insertion tab comprises two insertion tabs and each insertion tab is foldably connected to the top wall at a respective lateral fold line, each respective lateral fold line is adjacent a respective upper edge of the two side walls adjacent to the side wall opposite the one of the plurality of side walls connected to the top wall when the hinged lid is in the closed position.

21. The folding box of claim 13, wherein the plurality of side walls comprises two side walls adjacent to the one of the plurality of side walls connected to the top wall having upper edges foldably connected to a respective dust flap of the plurality of dust flaps.

22. The folding box of claim 21, wherein the upper edges of the two side wall adjacent to the one of the plurality of side walls connected to the top wall are curved.

23. The folding box of claim 22, wherein the upper edge of the at least one of the plurality of side walls is straight.

24. The folding box of claim 13, wherein the top wall has respective lateral edges, when the hinged lid is in the closed position, the lateral edges of the top wall are adjacent respective upper edges of the plurality of side walls.

25. The folding box of claim 24, wherein at least one of the lateral edges of the top wall is curved.

26. The folding box of claim 15, wherein the corner joints comprise a first corner joint comprising a first pair of triangular tabs and a second corner joint comprising a second pair of triangular tabs, the first pair of triangular tabs and the second pair of triangular tabs are folded against one of the plurality of side walls.

27. The folding box of claim 26, wherein the first pair of triangular tabs and the second pair of triangular tabs are folded against the one of the plurality of side walls which is foldably connected to the top wall.

28. The folding box of claim 27, wherein the corner joints further comprise a third corner joint comprising a third pair of triangular tabs and a fourth corner joint comprising a fourth pair of triangular tabs, the third pair of triangular tabs and the second pair of the triangular tabs are folded against the at least one of the plurality of side walls having the free edge.

Description

[0026] The invention is explained in more detail below with reference to the accompanying drawing of an exemplary embodiment. In the drawing:

[0027] FIG. 1 shows a blank for manufacturing the folding box lying flat in a perspective view obliquely from above and from the side;

[0028] FIG. 2 shows a folding box formed from the blank with the hinged lid open, in a perspective view obliquely from above and from the side;

[0029] FIG. 3 shows the folding box at the beginning of the closing of the hinged lid in a perspective view from the side;

[0030] FIG. 4 shows the folding box shortly before the hinged lid is completely closed, in a perspective view from the opposite side;

[0031] FIG. 5 shows the closed folding box in front view;

[0032] FIG. 6 shows the closed folding box in a perspective view obliquely from above and from the side;

[0033] FIG. 7 shows the closed folding box in a rear view;

[0034] FIG. 8 shows the closed folding box in a plan view.

[0035] The terms below, above and terms derived therefrom such as beneath and atop refer to the erected folding box, wherein the bottom wall is aligned horizontally and the side walls extend upwards from the bottom wall.

[0036] According to FIG. 1, the blank 1 has a bottom wall 2 with a hexagonal base region, wherein a side wall 9, 10, 11, 12, 13, 14 is articulated at each lateral edge of the bottom wall 2 via a straight lower fold line 3, 4, 5, 6, 7, 8. The side walls 9, 10, 11, 12, 13, 14 are each trapezoidal, wherein their width increases slightly from bottom upwards.

[0037] The lateral edges of adjacent side walls 9, 10, 11, 12, 13, 14 are connected to one another via corner joints 15, 16, 17, 18, 19, 20. Each corner joint 15 to 20 consists of two triangular tabs 15.1, 15.2 to 20.1, 20.2, which are connected to one another via central fold lines 21.1 to 26.1 and at which each one is connected to a lateral edge of one of the two adjacent side walls 9 to 14 via an outer fold line 21.2, 21.3 to 26.2, 26.3.

[0038] The side wall 9 is connected via a straight upper fold line 27 to a hinged lid 28 which has a top wall 29, which also has a hexagonal base. In addition to the lateral edge, which is connected to the side wall 9 via the upper fold line 27, the top wall 29 has two concave lateral edges 30, 31, each of which extends to a corner of the base region. Adjacent thereto, the top wall 29 has two straight lateral edges on both sides, which extend to the next corner. An insertion tab 34, 35 is hinged to each of these lateral edges via a lateral fold line 32, 33. The two outer corners of each insertion tab 34, 35 have roundings.

[0039] Opposite the lateral edge with which the top wall 29 is hinged to the side wall 9 via the upper fold line 27, the top wall 29 has a concavely bent lateral edge 36 which extends between the two straight lateral edges with the insertion tabs 34, 35.

[0040] On both sides next to the side wall 9, which is connected to the hinged lid via the upper fold line 27, the two adjoining side walls 10, 14 have a convexly bent upper edge 37, 38, on which a dust flap is hinged via a convexly bent upper fold line 39, 40 41, 42.

[0041] The side wall 12, which is arranged opposite the side wall 9, which is connected to the hinged lid 28 via an upper fold line 27, is also connected at the upper edge 43 via a convexly bent upper fold line 44 to a dust flap 45.

[0042] The two outer corners of each dust flap 41, 42, 45 are also rounded.

[0043] The side walls 11, 13, which are arranged between the side walls 10 and 12, 14, which are connected to dust flaps 41, 42, 45 via bent fold lines 39, 40, 44, each have an upper edge in the form of a straight free edge 46, 47.

[0044] According to FIG. 2, the folding box 48 is erected by folding the triangular tabs 15.1, 15.2 to 20.1, 20.2 of each corner joint 15 to 20 around the central fold lines 21.1 to 26.1 and by gluing them against each other and against the outer side of a side wall 9, 11, 13, the upper edge of which is straight. As a result, a cup or shell-shaped lower part 49 is formed. The upper edges of the side walls 9 to 14 delimit an opening 50 for filling and emptying the lower part of the folding box 48. In this state, a large number of identically designed folding boxes 48 can be nested in one another.

[0045] A single folding box 48 can be removed from the stack for filling. After loading salad or other small-sized product, the three dust flaps 41, 42, 45 are folded over the opening 50 between the upper edges of the side walls 9 to 14, in an approximately horizontal orientation. As a result, the filled product is held back, even if it is filled up to the upper edge of the lower part 49. When the dust flaps 41, 42, 45 are folded over, the side walls 10, 12, 14 connected thereto via upper fold lines 39, 40, 44 are bent somewhat inwards.

[0046] The folding box 48 is then closed by closing the hinged lid 28. Hereby, according to FIGS. 3 and 4, the top wall 29 is guided laterally on the bent upper edges 37, 38 of the side walls 10, 14, which are arranged on both sides of the side wall 9 to which the hinged lid 28 is hinged. As a result, the insertion tabs 34, 35 are aligned with the gaps between the dust flaps 41, 45 and 42, 45 and the side walls 11, 13 arranged therebetween and can be easily inserted into them.

[0047] According to FIGS. 5 to 8, the hinged lid 28 of the closed folding box 48 is slightly bulging upwards in the middle region, so that more product can be accommodated there.

[0048] The top wall 29 is covered below by the dust flaps 41, 42, 45 at the remaining edges. The concavely bent lateral edges 30, 31, 36 of the top wall 29 are adapted to the bent upper edges of the adjacent side walls 10, 12, 14. This achieves a tightly and securely closing hinged-lid box.

LIST OF REFERENCE NUMERALS

[0049] 1 blank [0050] 2 bottom wall [0051] 3, 4, 5, 6, 7, 8 lower fold line [0052] 9, 10, 11, 12, 13, 14 side wall [0053] 15, 16, 17, 18, 19, 20 corner joint [0054] 15.1, 15.2 to 20.1, 20.2 triangular tab [0055] 21.1 to 26.1 central fold line [0056] 21.2, 21.3 to 26.2, 26.3 outer fold line [0057] 27 upper fold line [0058] 28 hinged lid [0059] 29 top wall [0060] 30, 31 concave lateral edge [0061] 32, 33 lateral fold line [0062] 34, 35 insertion tab [0063] 36 concave lateral edge [0064] 37, 38 upper edge [0065] 39, 40 convex upper fold line [0066] 41, 42 dust flap [0067] 43 upper edge [0068] 44 convex upper fold line [0069] 45 dust flap [0070] 46, 47 free edge [0071] 48 folding box [0072] 49 lower part [0073] 50 opening