Carton and blank therefor

Patent metadata

Field	Value
Publication number	US-11827436-B2
Application number	US-201816764581-A
Country	US
Kind code	B2
Filing date	Oct 25, 2018
Priority date	Nov 16, 2017
Publication date	Nov 28, 2023
Grant date	Nov 28, 2023

Abstract

An elongate blank for forming a tubular carton, comprising a plurality of panels including a top panel (18), a first side panel (16), a second side panel (20), a first base panel (12) and a second base panel (24), said each panel being formed along either free end edge thereof with a cut-out so that said blank is provided along either longitudinal edge thereof with a plurality of tabs each interposed between adjacent ones of said cut-outs, said cut-outs including; a first major cut-out (70) struck from each of the opposed free end edges of the top panel, a second major cut-out (70A) struck from each of the opposed free end edges of the first side panel, a third major cut-out (70C) struck from each of the opposed free end edges of the second side panel, a first minor cut-out (70B) struck from each of the opposed free end edges of the first base panel, a second minor cut-out (70D) struck from each of the opposed free end edges of the second base panel, wherein the length (A2) of a portion of one of the free end edges of the first side panel defined by one of the second major cut-outs (70A) is less than the length (C2) of a portion of one of the free end edges of the second side panel defined by one of the third major cut-outs (70C).

First claim

The invention claimed is:

1. An elongate blank for forming a tubular carton, said blank comprising
a plurality of panels including;
a top panel,
a first side panel,
a second side panel,
a first base panel, and
a second base panel,

the plurality of panels arranged in a row along a length of the blank, said panels being hingedly connected one to another in series, each of said panels having a pair of opposed free end edges disposed generally along the length of the blank, said each panel being formed along either free end edge thereof with cut-outs so that said blank is provided along either longitudinal edge thereof with a plurality of tabs each interposed between adjacent ones of said cut-outs, said cut-outs including;
a first major cut-out struck from each of the opposed free end edges of the top panel,
a second major cut-out struck from each of the opposed free end edges of the first side panel,
a third major cut-out struck from each of the opposed free end edges of the second side panel,
a first minor cut-out struck from each of the opposed free end edges of the first base panel,
a second minor cut-out struck from each of the opposed free end edges of the second base panel,

wherein the length of one of the free end edges of the first side panel defined by one of the second major cut-outs is less than the length of one of the free end edges of the second side panel defined by one of the third major cut-outs.

2. An elongate blank according to claim 1 , wherein a first upper tab is hingedly connected in part to one of the first and second side panels and in part to the top panel.

3. An elongate blank according to claim 2 , wherein a second upper tab is hingedly connected in part to the other one of the first and second side panels and in part to the top panel.

4. An elongate blank according to claim 1 , wherein a first lower tab is hingedly connected in part to one of the first and second side panels and in part to one of the first and second base panels.

5. An elongate blank according to claim 4 , wherein a second lower tab is hingedly connected in part to the other one of the first and second side panels and in part to the other one of the first and second base panels.

6. An elongate blank according to claim 3 , wherein the length of the part of the first upper tab connected to one of the first and second side panels is less than the length of the part of the second upper tab connected to the other one of the first and second side panels.

7. An elongate blank according to claim 5 , wherein the length of the part of the first lower tab connected to one of the first and second base panels is less than the length of the part of the second lower tab connected to the other one of the first and second base panels.

8. An elongate blank according to claim 1 , wherein the second cut-outs each comprise an upper edge and a lower edge and the third cut-outs each comprise an upper edge and a lower edge, each of the lower edges of the second cut-outs being disposed at a first distance from an adjacent one of the first and second base panels, each of the lower edges of the third cut-outs being disposed at a second distance from an adjacent other one of the first and second base panels, the first distance being equal to the second distance.

9. An elongate blank for forming a tubular carton, said blank comprising
a plurality of panels including;
a top panel,
a first side panel hinged to a first side of the top panel,
a second side panel hinged to a second side of the top panel,
a first base panel hinged to the first side panel and
a second base panel hinged to the second side panel,

the plurality of panels arranged in a row along a length of the blank, said panels being hingedly connected one to another in series, each of said panels having a pair of opposed free end edges disposed generally along the length of the blank, said each panel being formed along either free end edge thereof with a cut-out so that said blank is provided along either longitudinal edge thereof with a plurality of tabs each interposed between adjacent ones of said cut-outs,
wherein the arrangement of cut-outs and tabs is asymmetrical about a notional line which is transverse to the longitudinal edges and bisects the top panel.

10. A carton for packaging one or more articles, the carton comprising a plurality of walls including;
a top wall,
a first side wall,
a second side wall,
a base wall,
the carton comprising an article retention structure comprising
a first top engaging structure and
a second top engaging structure,

the first top engaging structure comprising a first upper tab hingedly connected in part to a one of the first and second side walls and including;
a first anchoring portion hingedly connected to said one side wall;
a first gusset portion hingedly connected to the first anchoring portion;
a first web portion hingedly connected to the first gusset portion; and
a first covering portion provided by a part of the top panel and hingedly connected to the first web portion;

the second top engaging structure comprising a second upper tab hingedly connected in part to the other one of the first and second side walls and including;
a second anchoring portion hingedly connected to said other side wall;
a second gusset portion hingedly connected to the second anchoring portion;
a second web portion hingedly connected to the second gusset portion; and
a second covering portion provided by a part of the top panel and hingedly connected to the second web portion;

wherein the second anchoring portion is greater in dimension than the first anchoring portion.

11. A carton according to claim 10 , wherein a hinged connection connecting the second anchoring portion to said other side wall is longer than a hinged connection connecting the first anchoring portion to said one side wall.

12. An elongate blank according to claim 1 , wherein
the first minor cut-out has a first linear dimension (D2b);
a first lower tab of the plurality of tabs is formed in part from the first base panel and in part from the first side panel and has a second linear dimension (D1);
the second major cut-out has a third linear dimension (A2);
a second upper tab of the plurality of tabs is formed in part from the first side panel and in part from the top panel and has a fourth linear dimension (C1);
the first major cut-out has a fifth linear dimension (B2);
a first upper tab of the plurality of tabs is formed in part from the second side panel and in part from the top panel and has a sixth linear dimension (B1);
the third major cut-out has a seventh linear dimension (C2);
a second lower tab of the plurality of tabs is formed in part from the second base panel and in part from the second side panel and has an eighth linear dimension (A1);
the second minor cut-out has a ninth linear dimension (D2a);
wherein the length of the blank is given by:
length= A 1+ A 2+ C 1+ C 2+ B 1+ B 2+ D 2 a+D 2 b+D 1

and wherein
A1=A2
B1=B2
D1=D2a+D2b
C1=C2
C1>A2
C1>B1
(D2a+A1)=(D2b+D1).

13. An elongate blank according to claim 12 , wherein the top panel comprises a width dimension (W3); the first minor cut-out and the first lower tab together define a tenth linear dimension (W2), where W2=D2b+D1); the second partial cut-out 70 D and the second lower tab together define an eleventh linear dimension (W1), where W1=D2a+A1; the distance between the midpoint of the upper edge of the first lower tab and the fold line coupling the first side panel to the top panel defines a twelfth linear dimension (W5); the distance between the midpoint of the upper edge of the s

Assignees

• Westrock Packaging Systems Llc

Inventors

• Shibuya Katsuo

Classifications

• B65D71/20 Primary

  Slits or openings along the fold line of the tubular body · CPC title

• B65D2301/10

  Blanks mutually positioned to minimise waste material upon cutting out the individual blank from a continuous or large sheet · CPC title

• B65D2571/0066

  formed from one single sheet · CPC title

• B65D2571/0087

  Special features for machine processing, e.g. gripper apertures · CPC title

• B65D2571/00277

  Slits or openings formed along a fold line · CPC title