Paperboard container with angled corners

• US 4,792,084 A
• Filed: 02/24/1987
• Issued: 12/20/1988
• Est. Priority Date: 02/24/1986
• Status: Expired due to Term

• Current Assignee: Longview Fibre Paper And Packaging, Inc.
• Original Assignee: Longview Fibre Company
• Inventors: Dreeszen, Dale M.
• Primary Examiner(s): Marcus, Stephen
• Assistant Examiner(s): Elkins, Gary E.
• Application Number:
  US07/018,870
• Time in Patent Office: 665 Days
• Field of Search: 229/23 R, 229/41 C, 229/41 D, 229/109, 229/190, 229/192, 229/915, 229/918, 229/919, 229/DIG. 11
• US Class Current: 229/109
• CPC Class Codes: B65D 5/2033 polygonal having more than four sides, e.g. hexagonal, octogonal
• CPC Class Codes: Y10S 229/918 Corner construction
• CPC Class Codes: Y10S 229/919 Reinforced wall

Abstract

A paperboard carton is formed from a single blank of generally rectangular shape which is cut and scored along lines which provide corner panels at the four corners and middle panels separated from the corner panels along one pair of opposite sides of the blank by two laterally spaced pairs of two laterally spaced cut lines connected at their inner ends by an angularly directed cut line, and along the other pair of opposite sides of the blank by two laterally spaced pairs of two laterally spaced score lines which define between them an angle corner panel. The inner ends of the middle panels are defined by score lines which, together with the angle cut lines, define the peripheral margin of a central bottom panel. The middle panels form the ends and sides of the carton. In one specific embodiment, each of the pair of opposite middle panels defined by the spaced pairs of cut lines is provided with a score line which extends parallel to the adjacent cut line and terminates at its inner end at the corresponding end of the angular cut line, whereby the portion of the blank between the last mentioned score and cut lines forms a reinforcing angle corner panel.

Claims

1. A blank for a paperboard carton, comprising:

(a) a substantially rectangular, one-piece, carton-forming blank of foldable material having four corners,

(b) corner panels (10) at the four corners of the blank separated from adjacent first middle panels (16) along each of one pair of opposite sides of the blank by two spaced pairs of two substantially parallel spaced inner cut lines (12) and outer cut lines (14) extending inwardly from said one pair of opposite sides of the blank and defining a first middle panel (16) between the inner cut lines (12) of the pairs of cut lines and separated from adjacent second middle panels (22) along each of the other pair of opposite sides of the blank by two spaced pairs of substantially parallel spaced inner score lines (18) and outer score lines (20) extending inwardly from said other pair of opposite sides of the blank and defining between the inner score lines (18) of the pairs of score lines a second middle panel (22) and defining between the score lines (18,

     20) of each pair an angle corner panel (24), each of the inner (12) and outer (14) cut lines and inner (18) and outer (20) score lines having inner and outer ends,

(c) a score line (26) extending between the inner ends of the inner cut lines (12) of the two pairs of spaced cut lines (12,

     14) and defining the inner end of the associated first middle panel (16),

(d) a score line (28) interconnecting the inner ends of the inner score lines (18) of the two spaced pairs of score lines at each of the other pair of opposite sides of the blank and defining the inner end of the associated second middle panel (22),

(e) a cut line (30) extending obliquely between the inner ends of the two spaced cut lines (12,

     14) of each pair of cut lines, the width of each angle corner panel (24) between the associated inner and outer score lines (18,

     20) being substantially the same as the length of the associated cut line (30), and

(f) the score lines (26,

     28) forming the inner ends of the first and second middle panels (16,

     22) and the obliquely extending cut lines (30) defining the periphery of a central, bottom panel (32),

(g) the inner end of each of the angle corner panels (24) terminating inwardly of the inner end of the associated corner panel (10) and inwardly of the score line (28) defining the inner end of the associated second middle panel (22), whereby the inner end of each angle corner panel (24) abuts the outer edge of the associated oblique cut line (30) when the blank is folded to form a carton.

2. A blank for a paperboard carton, comprising:

(a) a substantially rectangular, one-piece, carton-forming blank of foldable material having four corners,

(b) corner panels (10) at the four corners of the blank separated from adjacent first middle panels (16) along each of one pair of opposite sides of the blank by two spaced pairs of substantially parallel spaced inner cut lines (12) and outer cut lines (14) extending inwardly from said one pair of opposite sides of the blank and defining a first middle panel (16) between the inner cut lines (12) of the pairs of cut lines and separated from adjacent second middle panels (22) along each of the other pair of opposite sides of the blank by two spaced pairs of substantially parallel spaced inner score lines (18) and outer score lines (20) extending inwardly from said other pair of opposite sides of the blank and defining between the inner score lines (18) of the pairs of score lines a second middle panel (22) and defining between the score lines (18,

     20) of each pair an angle corner panel (24), each of the inner (12) and outer (14) cut lines and inner (18) and outer (20) score lines having inner and outer ends,

(c) a score lines (26) extending between the inner ends of the inner cut lines (12) of the two pairs of spaced cut lines (12,

     14) and defining the inner end of the associated first middle panel (16),

(d) a score line (28) interconnecting the inner ends of the inner score lines (18) of the two spaced pairs of score lines at each of the other pair of opposite sides of the blank and defining the inner end of the associated second middle panel (22),

(e) a cut line (30) extending obliquely between the inner ends of the two spaced cut lines (12,

     14) of each pair of cut lines, the width of each angle corner panel (24) between the associated inner and outer score lines (18,

     20) being substantially the same as the length of the associated cut lines (30),

(f) the score lines (26,

     28) forming the inner ends of the first and second middle panels (16,

     22) and the obliquely extending cut lines (30) defining the periphery of a central, bottom panel (32),

(g) the inner end of eachn of the angle corner panels (24) terminating inwardly of the inner end of the associated corner panel (10) and inwardly of the score line (28) defining the inner end of the associated second middle panel (22), whereby the inner end of each angle corner panel (24) abuts the outer edge of the associated oblique cut line (30) when the blank is folded to form a carton, and

(h) a score line (34) in each first middle panel (16) spaced inwardly of and extending substantially parallel to each of the first named inner cut lines (12) and said score line (34) terminating at its inner end at the associated oblique cut line (30), the blank material between each said score line (34) in each first middle panel (16) and the associated inner cut line (12) defining a reinforcing angle corner panel (36) for lapping an associated angle corner panel (24).