Creased blank for forming a container with round or beveled corners

Patent metadata

Field	Value
Publication number	US-10442607-B2
Application number	US-201615740471-A
Country	US
Kind code	B2
Filing date	Jul 29, 2016
Priority date	Jul 31, 2015
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

A blank ( 300 ) for forming a container for consumer articles comprises panels ( 308, 309, 312, 314 ) for forming corresponding walls of the container. First side panels ( 311 ) extend from the rear wall panel ( 312 ) and second side panels ( 310 ) extend from the front wall panel ( 308 ). When assembling the container, the first and the second side panels overlap to form at least part of left and right side walls. The first side panels or the second side panels or both are connected to the respective one of the rear wall panel and the front wall panel by modified edge portions ( 3100, 3110, 3120, 3130 ). The blank comprises a pair of flaps extending from the first side panels or the second side panels or both.

First claim

The invention claimed is:

1. A laminar blank for forming a container for consumer articles, the laminar blank comprising:
a bottom wall panel for forming a bottom wall of the container and a top wall panel for forming a top wall of the container;
a rear wall panel for forming at least a part of a rear wall of the container and a front wall panel for forming at least a part of a front wall of the container;
two first side panels extending from the rear wall panel and two second side panels extending from the front wall panel, such that, when the container is assembled from the laminar blank, the first and the second side panels overlap to form at least part of left and right side walls of the container;
wherein at least one of the first side panels, at least one of the second side panels, or at least one of the first side panels and at least one of the second side panels is connected to a respective rear wall panel or the front wall panel by a modified edge portion;
each modified edge portion comprising:
a first zone comprising a plurality of creasing lines extending substantially in the longitudinal direction of the modified edge portion; and
a second zone that is substantially free of creasing lines, the second zone being disposed between a first free edge of the modified edge portion and the first zone of the modified edge portion;

the laminar blank further comprising at least one pair of dust flaps extending from the first side panels or the second side panels or both, such that, when the container is assembled from the laminar blank, the flaps in a pair overlap the bottom wall panel to form the bottom wall or the top wall panel to form the top wall;
wherein each dust flap in the at least one pair of dust flaps comprises a main flap portion depending along a fold line from a respective first or second side panel and a side flap portion extending laterally from the flap main portion beyond a peripheral edge of the respective first or second side panel; and
wherein the first zone of each modified edge portion comprises a plurality of pairs of creasing lines, all the creasing lines extending in parallel in the longitudinal direction of the modified edge portion, wherein the distance (X) between two creasing lines in each pair as measured along the width (W) of the modified edge portion is less than the distance (Y) between two adjacent pairs of creasing lines as measured along the width (W) of the modified edge portion.

2. A laminar blank according to claim 1 , wherein the second zone extends from the first zone to the first free edge of the modified edge portion in the longitudinal direction of the modified edge portion.

3. A laminar blank according to claim 1 , wherein the second zone has a length (L2) of 5 millimeters or less in the longitudinal direction of the modified edge portion.

4. A laminar blank according to claim 1 , wherein each modified edge portion further comprises a third zone disposed between a second free edge of the modified edge portion and the first zone of the modified edge portion.

5. A laminar blank according to claim 1 , wherein each modified edge portion has a length (L) in its longitudinal direction and
a width (A) that extends transversely to the length (L) across the modified edge portion; and wherein, in each dust flap of the at least one pair of dust flaps the side flap portion extends beyond the peripheral edge of the respective first or second side panel by at least about 25 percent of the width (A) of the modified edge portion.

6. A laminar blank according to claim 5 , wherein, in each dust flap of the at least one pair of dust flaps, the side flap portion extends beyond the peripheral edge of the respective first or second side panel by less than about 75 percent of the width (A) of the modified edge portion.

7. A laminar blank according to claim 1 , wherein the laminar blank is for forming a container having a maximum width and a maximum depth; and
wherein the width (A) of the modified edge portion is at least about 0.025 times (W+2D), where W is the maximum width of the container and D is the maximum depth of the container.

8. A laminar blank according to claim 1 , wherein the laminar blank is for forming a container having a maximum width and a maximum depth; and
wherein the width (A) of the modified edge portion is less than about 0.07 times (W+2D), where W is the maximum width of the container and D is the maximum depth of the container.

9. A laminar blank according to claim 1 , wherein the laminar blank is for forming a container having a maximum width and a maximum depth; and
wherein, in each dust flap of the at least one pair of dust flaps, the side flap portion extends beyond the peripheral edge of the respective first or second side panel by a length (E) such that the overall maximum width of the laminar blank substantially equals (W+2D), where W is the maximum width of the container and D is the maximum depth of the container.

10. A laminar blank according to claim 1 , wherein the first zone of each modified edge portion comprises at least three creasing lines extending in parallel in the longitudinal direction of the modified edge portion.

11. A laminar blank according to claim 1 , wherein each creasing line has a width (WA) of from about 0.1 millimeters to about 0.4 millimeters.

12. A laminar blank according to claim 1 , wherein the blank has a spring-back force of less than about 10 milliNewton meters between any two panels that are connected by a modified edge portion.

13. A container obtained by folding a laminar blank according to claim 1 , wherein the laminar blank forms at least a part of the container comprising a box portion having a box front wall, a box rear wall and box side walls extending between the box front wall and the box rear wall, and wherein the modified edge portions connect at least one of the box front wall and the box rear wall to the box side walls.

14. A container obtained by folding a laminar blank according to claim 1 , wherein the laminar blank forms at least a part of the container comprising a lid portion having a lid front wall, a lid rear wall and lid side walls extending between the lid front wall and the lid rear wall, and wherein the modified edge portions connect at least one of the lid front wall and the lid rear wall to the lid side walls.

Assignees

• Philip Morris Products Sa

Inventors

• Rudolf David

Classifications

• B65D85/1045 Primary

  having a cap-like lid hinged to an edge · CPC title

• B65D5/662

  the container being provided with an internal frame or the like for maintaining the lid in the closed position by friction · CPC title

• B65D5/543

  the container being provided with an internal frame or the like for maintaining the lid in the closed position by friction · CPC title

• B65D5/4266

  Folding lines, score lines, crease lines · CPC title

• B65D5/3607

  formed by folding or erecting a single blank · CPC title