초록 ▼

Hinge-lid boxes for cigarettes, comprising a box part (12) and lid (13), are frequently fitted with a closure aid for the lid (13). Said closure aid comprises interlocking elements which can be brought into engagement with one another, namely a lid inner tab (16), on the one hand, and a collar front

Hinge-lid boxes for cigarettes, comprising a box part (12) and lid (13), are frequently fitted with a closure aid for the lid (13). Said closure aid comprises interlocking elements which can be brought into engagement with one another, namely a lid inner tab (16), on the one hand, and a collar front wall (17), on the other hand. In order to ensure operativeness as soon as the pack is used, it is ensured that the closure aid is already in engagement when the pack is completed, i.e. before it is used for the first time. For this purpose, the lid (13) is partially opened after being substantially completed and is then moved into the closed position again thereby ensuring engagement of the closing elements.

대표청구항 ▼

1. A method for producing cigarette packs (10), of the hinge-lid box type, each of which comprises a box part (12), a lid (13) and a collar (14), the lid (13) being retained in a closed position by a closure aid by mutual interlocking of one interlocking element of the lid (13) with one interlocking

1. A method for producing cigarette packs (10), of the hinge-lid box type, each of which comprises a box part (12), a lid (13) and a collar (14), the lid (13) being retained in a closed position by a closure aid by mutual interlocking of one interlocking element of the lid (13) with one interlocking element of the collar (14),wherein the interlocking elements of the lid (13) and of the collar (14), which are disconnected from each other during production of a pack (10), are brought into an interlocking position, corresponding to an effective position of the closure aid, before the pack (10) is completed, said method further comprising the steps of: a) initially completing the pack (10) to an extent that a lid front wall (22) of the lid (13), in the closed position, abuts a collar front wall (17) with no mutual engagement at the collar front wall (17), b) then, displacing the lid front wall (22) in an opening direction of the lid (13) such that the interlocking elements lie offset to one another, and c) finally, displacing the lid front wall (22) back into the closed position of the lid (13) as the interlocking element of the lid is guided into the interlocking position with the interlocking element of the collar before the pack is completed. 2. The method according to claim 1, wherein the closure aid is formed as the interlocking element on the lid by a lid inner tab (16) with recesses (19) in a region of side borders (18), and as the interlocking element on the collar by webs (21) for delimiting a depression (20) of the collar front wall (17), said interlocking position being made by the steps of:a) first, finalizing the pack (10) up to a point that the lid inner tab (16) abuts the collar front wall (17) in the closed position of the lid (13), b) then displacing the lid front wall (22) with lid inner tabs (16) in the opening direction of the lid (13) and relative to the collar front wall (17) such that the recesses (19) lie offset to the webs (21), and c) to achieve interlocking engagement of the interlocking elements, displacing the lid front wall (22) back to its initial, closed position, as the webs (21) are introduced into associated ones of the recesses (19). 3. The method according to claim 2, further comprising the step of, during the displacement of the lid front wall (22) to the closed, or interlocking, position with the webs (21) of the collar (14), exerting pressure at least temporarily on the lid front wall (22) in a region of the interlocking elements.4. The method according to claim 2, further comprising the step of connecting outer lid side tabs (27), connected to the lid front wall, and inner lid side tabs (29) to each other by adhesive bonding after the lid inner tab (16) and the collar front wall (17) have been guided into the interlocking position.5. A device for producing cigarette packs (10), of the hinge-lid box type, each of which comprises a box part (12), a lid (13) and a collar (14), the lid (13) being retained in a closed position by a closure aid, comprised of mutually interlocking elements, by a mating of a lid inner tab (16), on an inner side of a lid front wall (22), with a collar front wall (17) of the collar (14), said device comprising:a) means for transporting in a transport direction each pack (10), which is largely completed by folding of a blank (11), along a pack conveyor path (25) with the lid front wall (22) facing upwards and abutting the collar front wall (17), and b) positioned above the pack conveyor path (25), an element for, during production of a pack and prior to completion thereof, producing a displacement of the lid front wall (22), in the direction of an open position of the lid (13) relative to the collar front wall (17), and then producing a counter-displacement of the lid front wall (22) back to its initial, or said closed, position. 6. The device according to claim 5,a) wherein said means for transporting also transports the packs (10), in a region of the pack conveyor path (25), with outer lid side tabs (27) directed laterally in a plane of the lid front wall (22), said device further comprising b) actuating member means, arranged above the pack conveyor path of the packs (10), for, first, moving the lid front wall (22) back from the box part (12), and, then, pushing the lid front wall (22) back to said initial, or closed, position. 7. The device according to claim 6, further comprising elements for displacing the lid front wall (20) in the opening direction of the lid (13), said elements comprising a segmental wheel (32) and a mating roller (34), said elements being arranged above the pack conveyor path of the packs (10) in a first work station (30) in the transport direction of the packs (10), and said elements gripping the laterally directed, outer lid side tabs (27) of each lid, and displacing said side tabs along with the lid front wall (22).8. The device according to claim 7, further comprising means for gripping the lid side tabs (27) between the segmental wheel (32) or a segment (33) of the segmental wheel (32), on one hand, and a mating roller (34) arranged above the path of movement on the other hand, the segmental wheel (32) and mating roller (34) being rotatable in a conveying direction relative to the packs (10) such that the side tabs (27) are displaced with the lid front wall (22) in the opening direction of the lid (13).9. The device according to claim 7, wherein the first work station (30) is followed in the conveying direction of the packs (10) by a second work station (31) which has a push element for moving the lid (13) or the lid front wall (22) back to its initial, or closed, position as the interlocking elements are guided into the interlocking position.10. The device according to claim 9, wherein the push element comprises a pressure lever (37), which revolves in a rotating manner and which temporarily abuts against the lid (13) by means of a projection (39), namely, against an end wall (28) which faces forwards in the direction of transport, or against an edge (40) formed between the lid front wall (22) and end wall (28).11. The device according to claim 5, further comprising means for applying pressure, during a return movement of the lid front wall (22) to its closed position, at least temporarily to the lid front wall (22) in a region of the interlocking elements, namely in a region of border edges of the lid inner tab (16).12. The device according to claim 11, wherein the means, for applying pressure to the lid front wall (22), comprises two rotating wheels (35) which are arranged at a transverse distance from each other and which have pressure segments (36).13. The device according to claim 9, further comprising means for applying pressure, during a return movement of the lid front wall (22) to its closed position, continuously or predominantly on the lid front wall (22) in a region of a pressure lever (37) by means of rotary pressure wheels (41) mounted on a common same axis for the purpose of holding down the lid front wall (22).14. A method for producing cigarette packs (10), of the hinge-lid box type, each of which comprises a box part (12), a lid (13) and a collar (14), the lid (13) being retained in a closed position thereof by a closure aid providing mutual interlocking of interlocking elements comprising folding tabs of the lid (13) on one hand, and the walls of the collar (14) on the other hand, wherein the interlocking elements, which are disconnected from each other during production of each pack (10), are brought into an interlocking position corresponding to an effective position of the closure aid before the pack (10) is completed, said method further comprising the steps of:a) initially completing the pack (10) to an extent that a lid front wall (22) of the lid (13), in the closed position of the pack (10), abuts a collar front wall (17) with no mutual engagement at the collar front wall (17), b) then, displacing the lid front wall (22) in an opening direction of the lid (13) such that the interlocking elements of the lid (13) and collar (14) lie offset to one another, and c) finally, displacing the lid front wall (22) back into the closed position of the lid (13) as the interlocking members are guided into the interlocking position. 15. A method for producing cigarette packs (10), of the hinge-lid box type, each of which comprises a box part (12), a lid (13) and a collar (14), the lid (13) being retained in a closed position thereof by a closure aid comprising a lid inner tab (16), which is attached to an inner side of the lid front wall (22) and which has recesses (19) in a region of side borders (18) as an interlocking element on a side of the lid, and by webs (21) for delimiting a depression (20) of a collar front wall (17) as an interlocking element on a side of the collar, wherein the interlocking elements, the lid inner tab (16) and the collar front wall (17), which are disconnected from each other during production of the pack (10), are brought into an interlocking position corresponding to an effective position of the closure aid before the pack (10) is completed, said method further comprising the steps of:a) first, finishing the pack (10) up to a point that the lid inner tab (16) abuts the collar front wall (17) in the closed position of the lid (13) with no engagement of the recesses (19) and the webs (21), b) then, displacing the lid front wall (22) with lid inner tab (16) in an opening direction of the lid (13) and relative to the collar front wall (17) such that the recesses (19) lie offset to the webs (19), and c) to achieve interlocking engagement, displacing the lid front wall (22) back to its closed position, as the webs (21) are introduced into associated ones of the recesses (19). 16. A method for producing cigarette packs (10), of the hinge-lid box type, each of which comprises a box part (12), a lid (13) and a collar (14), the lid (13) being retained in a closed position thereof by a closure aid providing mutual interlocking of interlocking elements comprising folding tabs of the lid (13), on one hand, and the walls of the collar (14) on the other hand, wherein the interlocking elements, which are disconnected from each other during production of the pack (10), are brought into an interlocking position corresponding to an effective position of the closure aid before the pack (10) is completed, said method further comprising the steps of:a) initially completing the pack (10) to an extent that outer lid side tabs (27) in a region of the closed lid (13) are folded into a plane of a lid front wall (22), and that the lid front wall (22), in a closed position of the pack (10), abuts a collar front wall (17) with no mutual engagement of the interlocking elements, b) then, displacing the lid front wall (22) in an opening direction of the lid (13) such that the interlocking elements of the lid (13) and collar (14) lie offset to one another, c) displacing the lid front wall (22) back into the closed position of the lid (13) as the interlocking elements are guided into the interlocking position, and d) then, folding the lid side tabs (27), which are provided with glue, to form lid side walls.