Convertible shipping container having reinforced corners and blanks for making the same

• US 9,090,037 B2
• Filed: 06/21/2012
• Issued: 07/28/2015
• Est. Priority Date: 06/15/2012
• Status: Active Grant

• Current Assignee: WestRock Shared Services, LLC (WestRock Company)
• Original Assignee: Rock-Tenn Shared Services, LLC (WestRock Company)
• Inventors: Swenson, Matthew Kiev
• Primary Examiner(s): DEMEREE, CHRISTOPHER R
• Application Number:
  US13/529,886
• Publication Number:
  US 20130334295A1
• Time in Patent Office: 1,132 Days
• Field of Search: 229/925, 229/120.03, 229/235, 493/83, 493/82, 206/746
• US Class Current: 1/1
• CPC Class Codes: B65D 2571/00574 whereby contents can still be carried after the line has been torn
• CPC Class Codes: B65D 5/0227 with end closures formed by inward folding of flaps and securing them by heat-sealing, by applying adhesive to the flaps or by staples
• CPC Class Codes: B65D 5/443 Integral reinforcements, e.g. folds, flaps double walls B65D5/02
• CPC Class Codes: B65D 5/54 Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing B65D5/06, B65D5/5233, B65D5/5253 take precedence ; break-in flaps, or members adapted to be torn-off, to provide pouring openings B65D5/70
• CPC Class Codes: B65D 5/542 the lines of weakness being provided in the container body

Abstract

A blank of sheet material for forming a convertible shipping container is provided. The blank includes a removable access panel, a top panel, a bottom panel, a front panel, and a rear panel. Each of top, bottom, rear, and front panels include side flaps extending from a side edge of each top, bottom, rear, and front panel. The removable access panel includes an access hole, a return hole, and relief creases to facilitate removal after the container is formed. The shipping container includes a top wall, a bottom wall, a front wall, a rear wall, a first side wall, a second side wall, and four corner structures.

Claims

1. A shipping container comprising:

a front wall, a first side wall, a rear wall, and a second side wall, each of said front wall, first side wall, rear wall, and second side wall having top and bottom edges and opposing side edges;

a top wall connected to said front wall along the top edge of said front wall and connected to said rear wall along the top edge of said rear wall, said top wall having opposing side edges;

a bottom wall; and

a removable access panel having a front portion and a top portion, wherein said front and top portions are defined by a continuous line of weakness extending from said top wall along at least a portion of said top edge of said first side wall and into said front wall,

wherein, when said removable access panel is removed, a first access opening is created within said top wall and a second access opening is created within said front wall,

wherein said first access opening comprises a substantial portion of said top wall, and said second access opening comprises a substantial portion of said front wall, wherein the continuous line of weakness extends at least along the top edge of said front wall and within said front wall at a distance spaced from at least one of said opposing side edges of said front wall to at least partially define a first front shoulder portion, wherein at least a portion of a top edge of said first front shoulder portion is a free edge that includes a portion extending from a corner defined between the front wall, the top wall, and at least one of the first and second side walls, the portion extending from the corner and at least partially along the top edge of said front wall when said removable access panel is removed.

2. The shipping container according to claim 1, wherein the continuous line of weakness extends within said front wall at a distance spaced from said opposing side edges and along at least a portion of the bottom edge of said front wall to define said first front shoulder portion and an opposing second front shoulder portion, said first and second shoulder portions extending inwardly from said opposing side edges of said front wall,

wherein the combination of said first front shoulder portion and said first side wall define a first corner structure, and

wherein the combination of said second shoulder portion and said second side wall define a second corner structure.

3. The shipping container according to claim 2, wherein the continuous line of weakness extends within said top wall along at least a portion of said opposing side edges of said top wall and between said opposing side edges of said top wall defining a top shoulder portion extending between the top edge of said rear wall and a portion of the continuous line of weakness,

wherein the top shoulder portion covers at least a portion of a third corner structure and a fourth corner structure.

4. The shipping container according to claim 1, wherein said container further comprises a first, a second, a third, and a fourth corner structure before and after removal of said removable access panel,

wherein the first, second, third, and fourth corner structures extend a full height of said container between said bottom wall and said top wall.

5. The shipping container of claim 1, wherein said first side wall is double-walled having an inside layer and an outside layer,

wherein said inside layer is comprised of one of opposing front side flaps and one of opposing rear side flaps, and

wherein said outside layer is comprised of one of opposing top side flaps and one of opposing bottom side flaps.

6. The shipping container of claim 1, wherein said second side wall is double-walled having an inside layer and an outside layer,

wherein said inside layer is comprised of one of opposing front side flaps and one of opposing rear side flaps, and

wherein said outside layer is comprised of one of opposing top side flaps and one of opposing bottom side flaps.

7. The shipping container according to claim 1, further including a glue flap extending from said bottom wall, said glue flap configured to couple said bottom wall to said rear wall.

8. The shipping container according to claim 1, wherein said top wall includes an access window and a partially releasable return flap, said access window configured to receive at least one finger of a user, said return flap configured to release upon a force applied by the at least one finger of said user,

wherein the configuration of the access window and return flap facilitate removal of said removable access panel.

9. The shipping container according to claim 1, wherein said top wall includes relief creases configured to facilitate removal of said removable access panel.

10. The shipping container according to claim 1, wherein said container is a first container further comprising first, second, third, and fourth corner structures extending a full height of said first container, said corner structures configured to facilitate stacking of at least a second container in a stacked configuration upon said top wall of the first container.

11. The shipping container according to claim 1, wherein said first access opening is configured to display at least a top row of a product contained within the shipping container.

12. The shipping container according to claim 1, wherein said second access opening is configured to display at least a front column of a product contained within the shipping container.

13. A blank of sheet material for forming a shipping container, the blank comprising:

a bottom panel, a front panel, a top panel, and a rear panel coupled in series by a plurality of fold lines, wherein each of said bottom panel, said front panel, said top panel, and said rear panel include opposing side edges;

opposing side flaps coupled by a plurality of fold lines to each of said opposing side edges of each of said bottom panel, said front panel, said top panel, and said rear panel;

a removable access panel having a front portion and a top portion, wherein said front and top portions are defined by a continuous line of weakness extending from said top panel along at least a portion of a first of said side edges of said top panel and into said front panel,

wherein when said removable access panel is removed, a first access opening is created within said top panel and a second access opening is created within said front panel,

wherein said first access opening comprises a substantial portion of said top panel, and said second access opening comprises a substantial portion of said front panel, wherein the continuous line of weakness extends at least along the fold line between said top panel and said front panel, and extends within said front panel at a distance spaced from at least one of said opposing side edges of said front panel to define a first front shoulder portion, wherein at least a portion of a top edge of said first front shoulder portion is a free edge that includes a portion extending from a corner defined between the front panel, the top panel, and at least one of the opposing side panels when the shipping container is formed, the portion extending from the corner and at least partially along a top edge of said front panel when said removable access panel is removed.

14. The blank according to claim 13, wherein the continuous line of weakness extends within said front panel at a distance spaced from said opposing side edges and along at least a portion of at least one fold line of said front panel to define said first front shoulder portion and an opposing second front shoulder portion, said first and second shoulder portions extending inward from said opposing side edges of said front panel,

wherein the combination of said first front shoulder portion and at least one of said opposing side flaps define a first corner structure, and

wherein the combination of said second shoulder portion and at least one of said opposing side flaps define a second corner structure.

15. The blank according to claim 14, wherein the continuous line of weakness extends within said top panel along at least a portion of said opposing side edges of said top panel and between said opposing side edges of said top panel defining a top shoulder portion extending between at least one of said plurality of fold lines and a portion of the continuous line of weakness,

wherein the top shoulder portion covers at least a portion of a third corner structure and a fourth corner structure.

16. The blank according to claim 13, wherein said top panel comprises said top shoulder portion and said top portion of removable access panel.

17. The blank according to claim 13, wherein said front panel comprises said first front shoulder portion, said second front shoulder portion, and said front portion of removable access panel, wherein said front portion extends between said first and second front shoulder portions.

18. The blank according to claim 13, wherein said blank further comprises a first, a second, a third, and a fourth corner structure before and after removal of said removable access panel,

wherein the first, second, third, and fourth corner structures extend a full length of opposing side edges of said front and rear panels.

19. The blank according to claim 13, further including a glue flap extending from said bottom panel configured to couple said bottom panel to said rear panel.

20. The blank according to claim 13, wherein said top panel includes an access window and a partially releasable return flap, said access window configured to receive at least one finger of a user, said return flap configured to release upon a force applied by the at least one finger of said user,

wherein the configuration of the access window and return flap facilitate removal of said removable access panel.

21. The blank according to claim 13, wherein said top panel includes relief creases configured to facilitate removal of said removable access panel.

22. A method of forming a shipping container from a blank of sheet material, the blank comprising a bottom panel, a front panel, a top panel, and a rear panel coupled in series by a plurality of fold lines, wherein each of said bottom panel, said front panel, said top panel, and said rear panel include opposing side edges, the blank further comprising opposing side flaps coupled by a plurality of fold lines to each of said opposing side edges of each of said bottom panel, said front panel, said top panel, and said rear panel, the blank also comprising a removable access panel having a front portion and a top portion, wherein said front and top portions are defined by a continuous line of weakness extending from said top panel panel along at least a portion of a first of said side edges into said front panel, the continuous line of weakness further extending at least along the fold line between said top panel and said front panel, and extending within said front panel at a distance spaced from at least one of said opposing side edges of said front panel to define a first front shoulder portion, the method comprising:

forming an open sided partially-formed box from said bottom panel, said front panel, said top panel, and said rear panel, said open sided partially-formed box comprising bottom, front, top, and rear walls;

rotating said opposing side flaps of said front and rear panels about said fold lines toward interior of said open sided partially-formed box;

rotating said opposing side flaps of said top and bottom panels about said fold lines toward interior of said open sided partially-formed box;

coupling opposing side flaps of said front and rear panels to opposing side flaps of said top and bottom panels to form a first and second side wall; and

removing said removable access panel such that a first access opening is created within said top wall and a second access opening is created within said front wall, and such that at least a portion of a top edge of said first front shoulder portion is a free edge that includes a portion extending from a corner defined between the front panel, the top panel, and at least one of the opposing side panels when the shipping container is formed, the portion extending from the corner and at least partially along a top edge of said front panel, wherein said first access opening comprises a substantial portion of said top panel, and said second access opening comprises a substantial portion of said front panel.

23. The method of claim 22, wherein the blank further includes a glue panel, said method comprising:

applying adhesive to said glue panel;

coupling said glue panel to said rear panel.

24. The method of claim 22, wherein removing said access panel includes utilizing relief creases, an access window, and a return flap to apply a pulling force to facilitate removal of said removable access panel.