Carton with self erecting partitions

• US 4,294,397 A
• Filed: 07/15/1980
• Issued: 10/13/1981
• Est. Priority Date: 07/15/1980
• Status: Expired due to Term

• Current Assignee: Jefferson Smurfit Corporation (Smurfit-Stone Container Corporation)
• Original Assignee: Container Corporation of America (Smurfit-Stone Container Corporation)
• Inventors: Kohler, Karl A.
• Primary Examiner(s): Price, William
• Application Number:
  US06/169,192
• Time in Patent Office: 455 Days
• Field of Search: 229/27, 229/39 B, 229/41 R, 229/41 B, 229/10, 229/15, 229/28 R, 229/37 R, 229/38, 206/216, 206/491, 206/45.19
• US Class Current: 229/120.08
• CPC Class Codes: B65D 5/48014 formed by folding extensions hinged to the side edges of a tubular body B65D5/48004 takes precedence; partition separated by erecting the body B65D5/48048

Abstract

A tubular carton containing automatically self erecting internal longitudinal and transverse partition structures.

Claims

1. In a folding carton, formed from a unitary blank of foldable paperboard, including automatically self-erecting interal longitudinal and transverse partition structures, the combination of:

(a) opposed pairs of major and minor side wall panels foldably joined to each other along parallel fold lines to form a tubular structure open at the ends;

(b) opposed pairs of major and minor end closure panels foldably joined to opposite ends of respective major and minor side wall panels, respectively, and adapted to be secured to each other in overlapped relation to close the ends of said carton;

(c) an internal longitudinal partition member including;

(i) a first element secured to and extending between and normal to opposed major side wall panels and disposed parallel to but spaced inwardly from one of said minor side wall panels;

(ii) a second element, having a width greater than that of said first element, secured at one side to one of said major side wall panels in alignment with said first element, and having its other side extending diagonally toward the junction of said other major side wall panel and said one minor side wall panel and being free from attachment to any of said panels;

(d) an internal transverse partition member being;

(i) foldably joined at one end to an edge of said longitudinal element member first element at a location between the ends of said carton and extending transversely from said first element toward said one minor side wall panel between said longitudinal partition member first and second elements;

(ii) supported by an end edge of said longitudinal member second element.

2. A unitary blank of foldable sheet material, such as paperboard, cut and scored to provide a folding carton including longitudinal and transverse partition members which are adapted to automatically move into position as the carton is erected, said blank comprising:

(a) a body portion including the following panels foldably joined one to the other in side-by-side relation along parallel fold lines;

(i) a first longitudinal partition panel;

(ii) one first major side wall panel section;

(iii) a first minor side wall panel;

(iv) a second major side wall panel;

(v) a second minor side wall panel;

(vi) another first major side wall panel section;

(vii) a second longitudinal partition panel;

(viii) a glue flap;

(b) said first longitudinal partition panel including at a first end a relatively narrow portion and at a second end a wider portion which has a transverse dimension greater than that of a minor side wall panel;

(c) said second longitudinal partition panel including at a first end a portion having a transverse dimension equal to that of a minor side wall panel and having at a second end a relatively narrow portion;

(d) a transverse partition panel foldably joined to one end of the first portion of said second longitudinal partition;

(e) closure flaps foldably joined to opposite ends of certain of said panels.