DE1586566B2 - CUT OUT FOR A FOLDING CARTON TO ENVELOP A NUMBER OF CANS WITH RECESSED ENDS - Google Patents

Description

The invention relates to a blank for a folding box for wrapping a number of rows arranged cans with recessed ends, which is divided by fold lines into sections, the end or Closing sections interacting, with a tubular folded blank, these locking tab connections having, wherein one of the end or closure sections is elongated and three parallel to the edge Fold lines as well as cutting lines offset parallel to them are shown in the tubular folded Cut to result in an upright rib with recesses lying between the rows of cans, in which engage the can heads.

A known blank of this type (US-PS 32 29 892) is used to wrap a number of cans that only have an outwardly curled edge at their upper end. For this reason, the cut is this known folding boxes with a from above, so from the handle side of the folding box between the Can provided extending rib. In addition, the well-known folding box is designed so that the upper, The edge of each can protruding laterally over the can jacket protrudes beyond the lateral dimensions of the folding box the blank thus has recesses through which areas of the Extend the edge of the can from the inside to the outside to prevent it from sliding sideways to prevent the individual cans from the tubular folded cardboard box.

The invention is based on the object of redesigning the known blank for a folding box in such a way that that it is used to wrap a number of rows of cans with recessed ends is usable, the new blanks are to be folded into much stronger folding boxes, as their Side walls should no longer contain openings that reduce their strength.

This object is achieved according to the invention in a blank for folding cartons of the said type according to FIG Invention achieved in that holding means are formed on both sides of the fold lines of the rib, which at tubular blank folded around a number of cans in a form-fitting manner in the recesses Engage can ends.

The heads or ends of the cans are thus not only engaged in the recesses by positive engagement the unfolded rib secured against axial displacement, but this recess of the rib acts with additional locking tabs together that form-fit with the recessed ends of each can so cooperate that the holding means are damaged or destroyed before an axial displacement of the cans have to.

According to a further feature of the invention, the fold lines of the rib are arranged on one side Holding means formed along the free edge of the end or closure section of the blank and, In a further development of the invention, designed as retractable locking tabs. In this way lie due to the inherent elasticity of the material of the blank, the locking tabs after folding the Cut into the recessed ends of the cans and thus prevent them from moving out of the Recesses of the upright rib, a locking tab cooperating with each recess.

According to a further feature of the invention, the outer edge of the locking tabs is like this shaped so that it fits flush into the recessed end of the can when the locking tab is folded back, so that the locking tab cooperates over a large area with the recessed end of the can

In order to hold the locking tabs in place, according to a further feature of the invention, each comprises Locking tab has a central cutout and a retaining tab that holds the folded-back locking tab overlaps

According to a further feature of the invention is to form the locking openings with Interlocking tabs cooperate, removed material used to form locking tabs that are used for positive engagement in the recessed can ends can be folded back. That way it becomes otherwise punched out material to form the locking openings is not removed, so that on the On the other side of the rib there are locking tabs without additional cutouts are formed, which in turn contributes to increasing the strength of the folding carton

Details of the further development of the invention that go beyond the features mentioned emerge from the further subclaims.

An embodiment of a blank according to the invention for a folding box is shown in the drawing shown in this shows

F i g. 1 shows a partially broken away perspective view of one of an inventive concept Cutting of folded cardboard boxes for wrapping a number of cans arranged in rows;

2 shows a plan view of a blank, enlarged, as it is used to form the part shown in FIG. 1 Folding boxes shown is used, with part of the side walls and the upper part forming the area is recessed;

F i g. 3 is a section along the line 3-3 in FIG. 1 in enlargement;

F i g. 4 shows a section along the line 4-4 in FIG. 3 and

F i g. 5 shows a section along the line 5-5 in FIG. 4th

The folding box designated 11 in FIG. 1 envelops a can pack 10 consisting of six cans C arranged in two rows. The individual cans have recessed ends, ie the end walls 29 of the cans C are offset axially inward by the axial length of the folds 30. The folding box 11 envelops the cans C in such a form-fitting manner that accidental slipping of cans out of the open ends of the folding carton is prevented

The folding carton 11 is formed from a one-piece blank 12, which comprises a top part 13 of the folding box 11 forming section and side walls forming sections 14 and 15. The The side wall section 14 is connected to the section forming the upper part 13 by a fold line 16. Correspondingly, the side wall section 15 is connected to the section 13 by a fold line 17.

The folding carton 11 further comprises a bottom wall, the is composed of several parts and the upper part formed by the section 13 is opposite. The bottom wall is formed by sections 20 and 21 which can be folded against one another. Section 20 is over a fold line 23 with the side wall section 14 and the section 21 via a fold line 24 with the Side wall section 15 connected. To lock the sections 20 and 22 together and to Closing the folding box 11, end closure sections are provided. A closure section 25 closes on the side of the section 20 facing away from the fold line 23 and stands with this through a Fold line 26 in connection. The free end of the closure section 25 is designed in a meander-like manner, to form a number of locking tabs 27. Along the fold line 26 are substantially C-shaped Cuts are made in section 20 at a distance from one another. These cuts form tabs 28 along the Closure section 25.

The tabs 28 cooperate with locking openings in the other locking section. at known blanks, material was removed as waste when the locking openings were formed In the blank shown in the drawing, however, this material is used in a different way, such as will be explained below.

The manner in which the cans are positively connected to the upper part 13 forms no part of the invention and is therefore not described in more detail. The section 13 has lying in the middle and downwardly extending tabs 31, which lie between the folds 30 in the transverse direction Cans are jammed. The end-to-end cans are moving out of the open ends of the folding carton prevented by locking tabs 32, which are pushed out of the upper section 13 and are folded over and engage in the recessed upper part of the cans. Furthermore, the section 13 Incisions 33, which form depressible tabs which, after being pressed in, engage the make it easier to use filled cardboard boxes.

The bottom section 21 comprises, in addition to the devices used to lock the two locking sections further, the form-fitting connection of the folding box with the recessed can ends serving Facilities. A closure section 34 adjoins the bottom section 21. This has a Fold line 35, which extends in the longitudinal direction of the folding box, that is, parallel to the fold lines 23 and 24 On both sides of this fold line 35, further interrupted fold lines 36 and 37 are formed which run parallel to the fold line 35. The fold lines 36 and 37 are formed by approximately C-shaped incisions 38 and 40, respectively interrupted, facing each other. When folding the folding box along fold lines 35, 36 and 37, an upright rib 41 is created. The rib 41 extends in the longitudinal direction and in the middle of the folding carton 11 from one end to the other, as shown in Fig. 1 and 5 is shown.

When folded, the C-shaped incisions 38 and 40 form pockets 42 in the rib at the bottom part thereof on opposite sides and serve to receive the folds 30 of the cans C, as FIG. 5 shows. The rib 41 extending from the bottom part of the folding box

extends upward, can be viewed as a stiffening keel. The rib 41 is supported by upright tabs 43 reinforced, which are pushed out of the body portion 20 and for maintaining the rib 41 in these lie, as shown in FIG. 5 shows.

The closure portion 34 is provided along the free edge with curved projections to the C-shaped incisions 38 and 40 lie centrally. The protrusions are over a broken fold line 44 connected to the closure section 34. This fold line 44 is formed by approximately C-shaped incisions 45 interrupted, each projection is thus approximately C-shaped in outline and forms a locking tab 46. The curved The edge of each locking tab has a radius of curvature which is the radius of curvature of the fold 30 of a can C. is equivalent to.

To fix the cans in a form-fitting manner, the locking tabs are folded over into a position in which they are over the adjacent area of the closure section 34, as shown in FIGS. 3 and 5. To the To keep locking tabs 46 in their operative position during the folding of the blank 13 is out of the closure section 34, in alignment with the respective locking tab 46, a substantially semicircular retaining tab 47 is pushed out When a locking tab 46 is folded over, it snaps past the retaining tab 47 and is thereby in the in F i g. 3 and 5 held in the folded position.

The locking tabs 46 are not only used, as shown in FIG. 3 and 5 show the cans C inside the folding carton in FIG to keep the desired position by preventing their longitudinal movement, but also to do so with the Rib 41 cooperate to firmly anchor the cans. On the one facing away from the locking tabs Further locking tabs are formed on the sides of the rib 41. As mentioned earlier, that was Bottom section 21 is provided with locking openings through which the tabs 28 and the locking tabs 27 were passed through in order to achieve the locking of the two bottom parts 20 and 21. While at the known designs the material removed to form the locking openings was waste, this is used in the blank shown in the drawing to add more locking tabs form.

In the middle of the bottom section 21, a locking tab 48 is formed, which is connected to the section 21 is connected via a fold line 49 which extends in the longitudinal direction, that is, parallel to the fold lines 35, 36 and 37. If the locking tab extends out of the plane of the bottom section 21 into the position shown in FIG. 5 shown Position is folded out, a locking opening 50 is formed in the bottom portion 21 for receiving the locking tab 27 associated with this locking opening are on the edge of the locking opening 50 parallel to the fold line 49 slits 51 provided as an extension of the edge. The free edge the locking tab 48, which is at a distance from the fold line 49, is designed so that it fits into the recessed end of a can can be added and lays firmly against its fold. the In this way, locking tab 48 prevents the can C lying in the middle from being inside in the longitudinal direction of the folding box can move. At the same time, the locking tab 48 cooperates with the rib 41 in such a way that the assigned can is firmly clamped in the middle part of the folding box

F i g. 5 shows that the locking tab 48 in no way interferes with the establishment of the positive connection between the floor sections 20 and 21 disturbs. The associated tab 28 is through the locking opening 50 passed through and engages behind the locking tab 48. Then the associated locking tab 27 passed through the locking opening and brought into the slots 51 in engagement and, as in FIG. 5 shows held in this position.

The material that normally falls off during the production of the two outer locking openings is used in a different way than was the case with the central locking opening. The outer locking openings 52 are formed partly by cutting lines and partly by two recesses 53 and 54. Since all of the material that was otherwise removed during the production of the locking opening is not removed, the recess 53 is used to receive the associated locking tab 27, while the recess 54 is used to receive the corresponding tab 28 when the locking tab 55 is folded back At the end of the locking opening 52, slots 57 extending in the longitudinal direction are provided at the fold line 54 to facilitate the locking of the locking tongue 27. Like Fi g. 1 and 3 show, the longitudinal edge of each folded locking tab 55 has a profile for abutment against the inner surface of a fold 30 of a can C. The locking tabs 55 therefore prevent the cans C lying at the ends of the folding carton from moving out of the folding carton . The locking tabs 55 in no way hinder the establishment of the locking connection between the two bottom sections 20 and 21. The tabs 28 can be guided freely through the locking openings 52. In the same way, the locking tabs 27 can be easily inserted through the locking opening 52 into the associated slots 57.

The locking tabs 55 also serve to wedge the cans C in the direction of the rib 41. This has the effect that the locking tabs 55 and the rib 41 cooperate in a form-fitting manner in order to hold the cans in the intended position in the folding box.

For this purpose 2 sheets of drawings

Claims (11)

Patent claims: 1. Blank for a folding cardboard box for wrapping a number of cans arranged in rows with recessed ends, which is divided by fold lines into sections, the end or closure sections of which, when the blank is folded in a tubular shape, interacting with tab connections that lock them, one of the end or closure sections. Closure sections is elongated and has three folding lines parallel to the edge as well as cutting lines offset parallel to these, which, when the blank is folded in a tubular shape, result in an upright rib lying between the rows of cans with recesses into which the can heads engage, characterized in that on both sides of the folding lines (35, 36, 37) of the rib holding means (46, 46, 46) and (55, 48, 55) are formed which, when the blank is folded tubularly around a number of cans (C), engage positively in the recessed can ends. 2. Blank according to claim 1, characterized in that the one hand of the fold lines (35,36,37) the rib arranged holding means along the free edge of the end or closure portion (34) of the Blank (12) are formed. 3. Blank according to claim 2, characterized in that the formed at the free edge Holding means are designed as retractable locking tabs (46). 4. Blank according to claim 3, characterized in that the outer edge of the locking tabs (46) is shaped so that it fits flush into the recessed end of the can (C) when the locking tab is folded back 5. Blank according to one of the preceding claims, characterized in that each Locking flap (46) has a central cutout and a retaining flap (47) comprises the folded back Holding locking tab (46), overlapping. 6. Blank according to claim 1, characterized in that the holding means by a one-piece foldable locking tab (48) are formed. 7. Blank according to claim 1, characterized in that the formation of the locking openings (50, 52), which cooperate with locking tabs (27), removed material for formation of locking tabs (48, 55) is used, which for positive engagement in the recessed Can ends are foldable back. so 8. Blank according to claim 7, characterized in that made of the material of the locking openings (50,52) formed locking tabs (48, 55) one of the fold lines (35, 36, 37) of the rib opposing central locking tabs (48) and outer locking tabs (55) extending from the Center locking tab (48) out in opposite directions parallel to the fold lines of the rib extend. 9. Blank according to claim 8, characterized in that made of the material of the locking openings (52) formed outer locking tabs (55) to one side of the opening foldable are and that the free edge of the outer locking tabs (55) is shaped so that it is flush with the recessed end of a can engages 10. Blank according to claim 9, characterized in that the outer locking tabs (55) around Fold lines (56) standing perpendicular to the fold lines (35, 36, 37) of the rib are foldable, while the central locking tab (48) is foldable about a fold line (49) parallel to the fold lines of the rib. 11. Blank according to one of the preceding claims, characterized in that the the material of the locking opening (50) formed central locking tab (48) when folded tubular The blank is overlapped by a locking tab (28) engaging in the locking opening (50) and is kept in a folded state