Polygonal container

• US 4,205,775 A
• Filed: 11/16/1978
• Issued: 06/03/1980
• Est. Priority Date: 11/16/1978
• Status: Expired due to Term

• Current Assignee: Walter B. Swan
• Original Assignee: Walter B. Swan
• Inventors: Swan, Walter B.
• Primary Examiner(s): Moorhead, Davis T.
• Application Number:
  US05/961,416
• Time in Patent Office: 565 Days
• Field of Search: 229/23 BT, 229/41 C, 229/45, 229/44, 229/38, 229/37 R
• US Class Current: 229/104
• CPC Class Codes: B65D 5/12 with end closures formed separately from tubular body
• CPC Class Codes: B65D 5/6602 formed by folding one or more extensions hinged to the upper edge of a tubular container body
• CPC Class Codes: Y10S 229/915 Stacking feature

Abstract

Polygonal containers of the present invention include a container sides assembly and a container bottom assembly which are adapted for interlocking engagement.

The container sides assembly has a plurality of generally rectangular side panels hingedly interconnected to form an enclosure defining the sides of the polygonal container.

A plurality of lower edge flaps are hingedly connected to the lower edge of the rectangular side panels and are adapted for folding upwardly and inside the enclosure to interlockingly receive corresponding elements from the container bottom assembly.

The container bottom assembly has a polygonal bottom panel having sides equal in number to the rectangular side panels and are of such a size to fit snugly within the container sides assembly when in assembled configuration for forming the container bottom.

A plurality of ear members equal in number to the number of sides of the polygonal bottom panel are each hingedly connected to a side of the polygonal bottom panel and are downwardly extending therefrom for operative engagement with the upwardly extending lower edge flaps of the container sides assembly.

A bottom reinforcement element corresponding generally in shape and size to the polygonal bottom panel is disposed in intimate proximity to the polygonal bottom panel to reinforce and strengthen same.

Claims

1. A polygonal container having a container sides assembly and a container bottom assembly which is adapted for interlocking engagement with said container sides assembly at the lower portion thereof for forming the container bottom:

said container sides assembly comprising;

a plurality of generally rectangular side panels hingedly interconnected to form an enclosure defining the sides of the polygonal container; and

a plurality of lower edge flaps each connected to the lower edge of a corresponding rectangular side panel to form a container sides assembly lower edge hinge, said lower edge flaps reflexively folded at the lower edge hinges upwardly and inside the enclosure to form an interlocking fold space between each said lower edge flap and the corresponding said rectangular side panel, each said interlocking fold space adapted for receiving the corresponding element from said container bottom assembly for secure engagement between said container sides assembly and said container bottom assembly; and

said container bottom assembly comprising;

a polygonal bottom panel having sides equal in number to said rectangular side panels and being of such a size to fit snugly within said container sides assembly when in assembled configuration for forming the container bottom;

a plurality of ear members equal in number to said number of sides of said polygonal bottom panel, each said ear member being connected to a corresponding side of said polygonal bottom panel at an ear member hinge and being downwardly extending from said corresponding side of said polygonal bottom panel for disposition into the interlocking fold space formed by each said upwardly extending lower edge flap and its corresponding rectangular side panel of said container sides assembly; and

bottom reinforcement means corresponding generally in shape and size to said polygonal bottom panel and disposed in intimate proximity to said polygonal bottom panel to reinforce and stengthen said polygonal bottom panel.

2. The polygonal container of claim 1 wherein said bottom reinforcement means is in contact with and fixedly secured to said polygonal bottom panel at the underside thereof.

3. The polygonal container of claim 1 wherein said bottom reinforcement means is maintained in intimate proximity to said polygonal bottom panel by means of an interference fit between said bottom reinforcement means and said plurality of lower edge flaps when said lower edge flaps are folded upwardly and inside the container enclosure to interlockingly receive said ear members of said container bottom assembly.

4. The polygonal container of claim 1 wherein said bottom reinforcement means comprises an insert of a hard, resilient material.

5. The polygonal container of claim 1 wherein said bottom reinforcement means comprises an insert of styrofoam material.

6. The polygonal container of claim 1 wherein said bottom reinforcement means comprises an insert of corrugated material having a multiplicity of corrugated ribs extending normal to said polygonal bottom panel, said multiplicity of corrugated ribs disposed across substantially one face of said polygonal bottom panel to support and reinforce the entirety of the polygonal bottom panel and especially against a downwardly compressive force.

7. The polygonal container of claim 1 wherein said bottom reinforcement means comprises:

a polygonal central bottom reinforcement panel corresponding generally in size and shape to said polygonal bottom panel;

a plurality of supplemental bottom reinforcement panels, each corresponding generally in size and shape to said polygonal central bottom reinforcement panel; and

hinge means disposed between one side of each supplemental bottom reinforcement panel and a corresponding side of said polygonal central bottom reinforcement panel for reflexively folding a first said supplemental bottom reinforcement panel and the others in sequence to the last supplemental bottom reinforcement means onto said polygonal central bottom reinforcement panel to form a multilayered configuration having a substantial thickness, the length of said hinge means between said supplemental bottom reinforcement panels and said polygonal central reinforcement panel increasing proportionally from said first supplemental bottom reinforcement panel, whereby said multilayered configuration once folded will tend to remain in such folded multilayered configuration without substantial application of external force.

8. The polygonal container of claim 7 wherein said polygonal bottom reinforcemental panel, said supplemental bottom reinforcement panels, and said hinge means comprise a unitary panel of corrugated material having corrugated ribs disposed generally parallel to each other and uniformly along the length of said unitary panel, whereby when said supplemental bottom panels are reflexively folded to form said multilayered configuration said corrugated ribs on adjacent supplemental bottom panels overlap each other at an acute angle to form a structure having substantially uniform flex resistance.

9. The polygonal container of claim 8 wherein the number of polygonal sides of each of said polygonal bottom panel and said corresponding bottom reinforcement means is less than seven in number.

10. The polygonal container of claim 1 wherein said bottom reinforcement means comprises:

a plurality of hingedly interconnected supplemental bottom support panels of substantially the same size and shape as said polygonal bottom panel and at least one of which is hingedly connected to said bottom support panel at a polygonal side thereof for reflexive folding onto said bottom support panel thereby to provide reinforcement thereto.

11. The polygonal container of claim 10 wherein said supplemental bottom support panels are reflexively folded onto the underside of said polygonal bottom container.

12. The polygonal container of claim 11 wherein at least one of said supplemental bottom support panels is hingedly connected directly to each of a pair of opposing polygonal sides of said polygonal bottom support panel.

13. The polygonal container of claim 12 wherein said opposingly connected supplemental bottom support panels are hingedly connected to the polygonal side of said polygonal bottom panel near the juncture of said polygonal side with the adjacent polygonal side of said polygonal bottom panel.

14. The polygonal container of claim 13 wherein one of said ear members is connected on said polygonal side interior of the connection thereof with said supplemental bottom support panel.

15. The polygonal container of claim 1 wherein said polygonal bottom panel is interlockingly secured at a substantial distance above said container sides assembly lower edge hinges, whereby any contents of said polygonal container are supported and carried substantially above the surface on which the polygonal container rests, thereby to protect such contents from damage from any liquid on such surface and to cushion such contents from vibration or movement of such surface.

16. The polygonal container of claim 1 wherein each said lower edge flap of said container sides assembly has a free edge disposed opposite to its corresponding lower edge hinge, each said free edge contacting said polygonal bottom panel in the proximity of the ear member hinge thereof to support thereby said polygonal bottom panel.

17. The polygonal container of claim 1 wherein each ear member of said polygonal bottom panel has a terminal edge disposed opposite to its corresponding lower edge hinge, each said terminal edge contacting said lower hinge within the interlocking fold space to further support said polygonal bottom panel.

30. The polygonal container of claim 1 wherein said lower edge flaps and said corresponding and engaging ear members are equal in number.

31. The polygonal container of claim 1 wherein the number of said rectangular side panels is even and greater than two.

32. The polygonal container of claim 1 wherein the number of said rectangular side panels is odd and greater than one.

33. The polygonal container of claim 1 wherein at least one of said lower edge flaps of said container sides assembly is separated from an adjacent lower edge flap by a slit extending from the lower extremity of said container sides assembly to the said corresponding rectangular side panel, whereby said lower edge flaps are more easily folded upwardly for engagement with said ear members of said container bottom assembly.

34. The polygonal container of claim 33 wherein said slits separating said lower edge flaps from each other extend from said lower extremity of said container sides assembly to a point disposed between two adjacent rectangular side panels to permit folding of each lower edge flap upwardly to correspond to each individual rectangular side panel of said container sides assembly.

35. The polygonal container of claim 33 where said slits separating said lower flaps from each other extend from said lower extremity of said container sides assembly to a point on a single rectangular side paenl to permit engagement of a single ear member of said container bottom assembly with two adjacent lower edge flaps, whereby the strength and stability of the engagement between said container bottom assembly and said container sides assembly of the polygonal container is enhanced.

36. The polygonal container of claim 1 wherein said container sides assembly is foldably formed from a unitary blank of relatively rigid, but foldable, material and one said panel of said container sides assembly has an edge with a longitudinally extending side flap hingedly disposed therefrom, with the panel disposed at the opposite side of said blank having a free edge for receiving said longitudinally extending side flap, thereby to form an enclosure by means of said rectangular side panels.

18. A polygonal container having a container sides assembly and a container bottom assembly which is adapted for interlocking engagement with said container sides assembly at the lower portion thereof for forming the container bottom:

said container sides assembly comprising;

a plurality of generally rectangular side panels hingedly interconnected to form an enclosure defining the sides of the polygonal container; and

a plurality of lower edge flaps hingedly connected to the lower edge of said rectangular side panels and adapted for folding upwardly and inside the enclosure to interlockingly receive corresponding elements from said container bottom assembly; and

said container bottom assembly comprising;

a polygonal bottom panel having sides equal in number to said rectangular side panels and being of such a size to fit snugly within said container side assembly when in assembled configuration for forming the container bottom;

a plurality of ear members equal in number to said number of sides of said polygonal bottom panel, each of which ear members is hingedly connected to a side of said polygonal bottom panel and is downwardly extending therefrom for operative engagement with said upwardly extending lower edge flaps of said container sides assembly; and

bottom reninforcement means corresponding generally in shape and size to said polygonal bottom panel and disposed in intimate proximity to said polygonal bottom panel to reinforce and strengthen said polygonal bottom panel

said bottom reinforcement means comprising;

a plurality of hingedly interconnected supplemental bottom support panels of substantially the same size and shape as said polygonal bottom panel and at least one of which is hingedly connected to said bottom support panel at a polygonal side thereof for reflexive folding onto the underside of said bottom support panel thereby to provide reinforcement thereto,

at least one of said supplemental bottom support panels being hingedly connected directly to each of a pair of opposing polygonal sides of said polygonal bottom support panel,

and at least one supplemental bottom support panel on each opposed side of said polygonal bottom panel being foldable along a fold line dividing each said supplemental bottom support panel into substantially equal parts for reflexively folding at least said supplemental bottom support panel onto itself,

whereby when said container bottom assembly is in folded configuration each said opposing supplemental bottom support panel reinforces one-half of said polygonal bottom panel.

19. The polygonal container of claim 18 wherein second supplemental bottom support panels having said fold lines thereon are hingedly connected to said oppositely disposed first supplemental bottom support panels for additional reinforcement of said polygonal bottom panel.

20. A polygonal container having a container sides assembly and a container bottom assembly which is adapted for interlocking engagement with said container sides assembly at the lower portion thereof for forming the container bottom:

said container sides assembly comprising;

a plurality of generally rectangular side panels hingedly interconnected to form an enclosure defining the sides of the polygonal container; and

a plurality of lower edge flaps hingedly connected to the lower edge of said rectangular side panels and adapted for folding upwardly and inside the enclosure to interlockingly receive corresponding elements from said container bottom assembly; and

said container bottom assembly comprising;

a polygonal bottom panel having sides equal in number to said rectangular side panels and being of such a size to fit snugly within said container sides assembly when in assembled configuration for forming the container bottom;

a plurality of ear members equal in number to said number of sides of said polygonal bottom panel, each of which ear member is hingedly connected to a side of said polygonal bottom panel and is downwardly extending therefrom for operative engagement with said upwardly extending lower edge flaps of said container sides assembly; and

bottom reinforcement means corresponding generally in shape and size to said polygonal bottom panel and disposed in intimate proximity to said polygonal bottom panel to reinforce and strengthen said polygonal bottom panel,

said bottom reinforcement means comprising a strip of substantially flexible material spirally wound to form a cylindrical body having a diameter of such size sufficient to fit snugly with respect to lower edge flaps of said container sides assembly when said container sides assembly is disposed in interlocking engagement with said container bottom assembly.

21. The polygonal container of claim 20 wherein said polygonal container has more than eleven polygonal sides.

22. A polygonal container having a container sides assembly and a container bottom assembly which is adapted for interlocking engagement with said container sides assembly at the lower portion thereof for forming the container bottom:

said container sides assembly comprising;

a plurality of generally rectangular side panels hingedly interconnected to form an enclosure defining the sides of the polygonal container; and

a plurality of lower edge flaps hingedly connected to the lower edge of said rectangular side panels and adapted for folding upwardly and inside the enclosure to interlockingly receive corresponding elements from said container bottom assembly; and

said container bottom assembly comprising;

a polygonal bottom panel having sides equal in number to said rectangular side panels and being of such size to fit snugly within said container sides assembly when in assembled configuration for forming the container bottom;

a plurality of ear members equal in number to said number of sides of said polygonal bottom panel, each of which ear members is hingedly connected to a side of said polygonal bottom panel and is downwardly extending thereform for operative engagement with said upwardly extending lower edge flaps of said container sides assembly; and

bottom reinforcement means corresponding generally in shape and size to said polygonal bottom panel and disposed in intimate proximity to said polygonal bottom panel to reinforce and strengthen said polygonal bottom panel; and

a stacking cavity disposed at the bottom of said polygonal container bounded by said bottom reinforcement means lower surface and said lower edge flaps when said container sides assembly and said container bottom assembly are disposed in interlocking engagement,

said polygonal container further including means for covering the opening at the top of the enclosure formed by said rectangular side panels, said covering means including thereon stacking means projecting above the surface thereof for engagement with said stacking cavity of another said polygonal container.

23. The polygonal container of claim 22 wherein said stacking means and said stacking cavity are such corresponding size and shape to fit substantially snugly together whereby stable stacking of several such polygonal containers may be maintained.

24. The polygonal container of claim 23 wherein said stacking means comprises at least two polygonal stacking panels hingedly connected at polygonal sides thereof for reflexively folding together into intimate contact of the respective faces thereof to form a stacking block of substantial thickness for said stacking engagement with said stacking cavity.

25. The polygonal container of claim 24 wherein said polygonal container further includes:

lid means for covering the opening at the top of the enclosure formed by said rectangular side panels, said lid means having a lid aperture disposed sufficiently near a proximate polygonal side of said polygonal container for manually grasping and handling said lid means and thereby said polygonal container; and

handle grip reinforcement means hingedly connected at the proximal portion thereof to the top edge of the rectangular side panel forming said proximate polygonal side and projecting laterally across said opening to a position adjacent said lid aperture whereby said handle grip reinforcement means is manually graspable in handling said polygonal container.

26. The polygonal container of claim 25 wherein said proximate rectangular side panel includes horizontal slot means disposed near said hinged connection between said handle grip reinforcement means and said proximate rectangular side panel and handle grip reinforcement means comprises a grip member reflexively foldable at a central portion thereof and containing at the distal portion thereof a mating tab for locking engagement with said horizontal slot means.

27. A polygonal container having a container sides assembly and a container bottom assembly which is adapted for interlocking engagement with said container sides assembly at the lower portion thereof for forming the container bottom:

said container sides assembly comprising;

a plurality of generally rectangular side panels hingedly interconnected to form an enclosure defining the sides of the polygonal container; and

a plurality of lower edge flaps hingedly connected to the lower edge of said rectangular side panels and adapted for folding upwardly and inside the enclosure to interlockingly receive said polygonal to panel, each said lid side panel disposable downwardly when in assembled configuration into contacting relationship with the top portion of the corresponding rectangular side panels of said container sides assembly to close the opening at the top of said enclosure formed by said container sides assembly, each said lid side panel having opposed side edges, a pair of said lid side panels being connected to second and third said lid polygonal sides are immediately adjacent said first lid polygonal side, each of said second and third lid polygonal sides having a free side edge and an abutting side edge, and the remainder of said lid side panels having two opposed abutting side edges when said lid side panels are disposed downwardly in said assembled configuration;

a plurality of locking panels, being two less in number than the number of polygonal sides of the polygonal container, each of which is hingedly connected to an opposed side edge of a corresponding lid side panel, and each of which bears a locking protrusion thereon; and

a plurality of securement panels, being three less in number than the number of sides of said polygonal container, each of which is hingedly connected at its proximal end to the distal end of one of said remainder of said lid side panels, and each said securement panel having a lock slit at the hinged connection with said corresponding lid side panel for mating engagement with said locking protrusion thereby to secure said lid in assembled configuration.

28. The polygonal container of claim 27 wherein said lid and said container sides assembly further include lid securement means for removably securing said assembled lid atop said assembled container sides assembly, said lid securement means comprising:

a securement release access aperture disposed in at least one of said remainder of said lid side panels to form an apertured lid side panel;

a lid securement flap hingedly disposed at the top edge of the rectangular side panel corresponding to each said apertured lid side panel, each said lid securement flap foldable outwardly and downwardly for locking engagement with said corresponding securement panel distal edge,

whereby when in assembled configuration said lid may be disposed over said top portion of said container sides assembly to slide over and lockingly engage said lid securement flaps, and whereby said lid securement flaps may be pressed and disposed slightly inwardly through said securement release access aperture thereby to disengage said lid securement flap from said securement panel distal edge for removing said cover.

38. The polygonal container of claim 27 wherein at least two polygonal cover panels and accompanying polygonal cover panel hinges are provided for overlapping disposition when said polygonal cover panels are folded into said normal disposition with respect to the corresponding rectangular side panels.

39. The polygonal container of claim 38 wherein said polygonal cover panels are attached to rectangular side panels which are separated by two intervening rectangular side panels.

29. A polygonal container having a container sides assembly and a container bottom assembly which is adapted for interlocking engagement with said container sides assembly at the lower portion thereof for forming the container bottom:

said container sides assembly comprising;

a plurality of generally rectangular side panels hingedly interconnected to form an enclosure defining the sides of the polygonal container; and

a plurality of lower edge flaps hingedly connected to the lower edge of said rectangular side panels and adapted for folding upwardly and inside the enclosure to interlockingly receive corresponding elements from said container bottom assembly; and

said container bottom assembly comprising;

a polygonal bottom panel having sides equal in number to said rectangular side panels and being of such a size to fit snugly within said container sides assembly when in assembled configuration for forming the container bottom;

a plurality of ear members equal in number to said number of sides of said polygonal bottom panel, each of which ear members is hingedly connected to a side of said polygonal bottom panel and is downwardly extending therefrom for operative engagement with said upwardly extending lower edge flaps of said container sides assembly;

bottom reinforcement means corresponding generally in shape and size to said polygonal bottom panel and disposed in intimate proximity to said polygonal bottom panel to reinforce and strengthen said polygonal bottom panel; and

a polygonal lid for said polygonal container, said polygonal container having an opening at the top thereof and a selected number of sides defining the opening, said polygonal lid comprising;

a polygonal top panel having a number of polygonal sides which number is the same as the number of sides of the polygonal container, said polygonal top panel being of such size and shape as to correspond substantially to the size and shape of the opening at the top of the polygonal container;

a plurality of lid side panels being the same in number as the number of sides of the polygonal container, each said lid side panel having oppositely disposed upper and lower edges and opposed side edges, and each said lid side panel being hingedly connected at the proximal edge thereof to a polygonal side of said polygonal top panel, each said lid side panel being adapted for folded disposition downwardly substantially normal to said polygonal top panel to dispose adjacent said lid side panels in substantially contacting relationship at the opposed sides thereof when in such assembled disposition;

means for maintaining said opposed sides in said substantially contacting relationship and maintaining means including a securement panel hingedly connected to the distal edge of each said lid side panel, each said securement panel reflexively foldable upwardly to dispose each said securement panel into intimate proximity to the interior surface of each said lid side panel; and

lid securement means for removably securing said polygonal top on said assembled container sides assembly, said lid securement means comprising;

a securement release access aperture disposed in at least one of said lid side panels to form an apertured lid side panel; and

a lid securement flap hingedly disposed at the top edge of the rectangular side panel corresponding to each said apertured lid side panel, each said lid securement flap foldable outwardly and downwardly for locking engagement with said corresponding securement panel distal edge,

whereby when in assembled configuration said lid may be disposed over said top portion of said container sides assembly to slide over and lockingly engage said lid securement flaps, and whereby said lid securement flaps may be pressed and disposed slightly inwardly through said securement release access aperture thereby to disengage said lid securement flap from said securement panel distal edge for removing said cover.

37. A polygonal container and integral foldable cap assembly therefor, said container having a container sides assembly and a container bottom assembly which is adapted for interlocking engagement with said container sides assembly at the lower portion thereof for forming the container bottom:

said container sides assembly comprising;

a plurality of generally rectangular side panels hingedly interconnected to form an enclosure defining the sides of the polygonal container; and

a plurality of lower edge flaps hingedly connected to the lower edge of said rectangular side panels and adapted for folding upwardly and inside the enclosure to interlockingly receive corresponding elements from said container bottom assembly; and

a polygonal bottom panel having sides equal in number to said rectangular side panels and being of such a size to fit snugly within said container sides assembly when in assembled configuration for forming the container bottom;

a plurality of ear members equal in number to said number of sides of said polygonal bottom panel, each of which ear members is hingedly connected to a side of said polygonal bottom panel and is downwardly extending therefrom for operative engagement with said upwardly extending lower edge flaps of said container sides assembly;

bottom reinforcement means corresponding generally in shape and size to said polygonal bottom panel and disposed in intimate proximity to said polygonal bottom panel to reinforce and strengthen said polygonal bottom panel; and

said foldable cap assembly for covering the opening at the top of the enclosure formed by the polygonal container comprising;

at least one polygonal cover panel hingedly attached at a first polygonal side thereof to the top edge of a first rectangular side panel and foldable generally normal thereto for covering the top opening of the polygonal container; and

a polygonal cover panel hinge foldably attached at a second polygonal side thereof, which second polygonal side is adjacent said first polygonal side, said polygonal cover panel hinge also foldably attached to the top edge of a second rectangular side panel, which second rectangular side panel is adjacent to said first rectangular side panel, said polygonal cover panel hinge being wedgeshaped to span the angle between said second polygonal side of said polygonal cover panel and between said top edge of said second rectangular side panel, said angle being generally bisected by a fold line, whereby when said polygonal cover panel is disposed normal to said first rectangular side panel said second polygonal side of said polygonal panel is disposed onto said top edge of said second rectangular side panel to cover the opening at the top of the enclosure formed by the polygonal container.

40. The polygonal container of claim 37 further including at least one supplemental cover panel which is of lesser size than said polygonal cover panels and which is hingedly connected to a top edge of said rectangular side panel and foldable into normal disposition with regard to its respective rectangular side panel, whereby said polygonal cover panels are further supported in covering said enclosure opening.