Tie-lock shipper

• US 10,329,046 B2
• Filed: 01/31/2017
• Issued: 06/25/2019
• Est. Priority Date: 01/31/2017
• Status: Active Grant

• Current Assignee: International Paper Company
• Original Assignee: International Paper Company
• Inventors: Smith, Jeffrey
• Primary Examiner(s): Demeree, Christopher R
• Application Number:
  US15/420,623
• Publication Number:
  US 20180215498A1
• Time in Patent Office: 875 Days
• Field of Search: 22911701, 22911715, 229186, 229157, 22911705, 229178, 229148
• CPC Class Codes: B31B 2100/00 Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
• CPC Class Codes: B31B 2120/30 collapsible; temporarily collapsed during manufacturing
• CPC Class Codes: B31B 50/26 Folding sheets, blanks or webs
• CPC Class Codes: B31B 50/60 Uniting opposed surfaces or edges; Taping
• CPC Class Codes: B31B 50/732 by folding or tucking-in locking flaps
• CPC Class Codes: B65D 5/02 by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body B65D5/36 takes precedence
• CPC Class Codes: B65D 5/3628 collapsed along median lines of two opposite sides of the rectangular tubular body

Abstract

A blank for making a one-piece container. The blank includes a central first section, a pair of second sections connected to the first section along a respective first longitudinal score line, and a pair of third sections, each third section connected to a second section along a respective second longitudinal score line. The second sections define side walls and end walls of the container, and the third sections define bottom flaps of the container. The first section includes a pair of top lateral flaps located on either side of a longitudinal slit that divides the blank in half. A pair of top end flaps span across opposing longitudinal ends of the top lateral flaps. Each top end flap comprises a triangular section defining a bow-tie lock connecting two halves of the blank on either side of the longitudinal slit.

Claims

1. A blank for making a one-piece container comprising:

a central first section;

a pair of second sections connected to the first section along a respective first longitudinal score line, the second sections defining side walls and end walls of the container;

a pair of third sections, each third section connected to a second section along a respective second longitudinal score line, the third sections defining bottom flaps of the container;

the first section including a pair of top lateral flaps located on either side of a longitudinal slit that divides the blank in half, and a pair of top end flaps spanning across opposing longitudinal ends of the top lateral flaps; and

each top end flap comprises a triangular section defining a bow-tie lock connecting two halves of the blank on either side of the longitudinal slit.

2. The blank as set forth in claim 1, wherein the longitudinal slit extends into the top end flaps, and including first lateral slits bisected by the longitudinal slit and defining a separation between the top lateral flaps and each top end flap.

3. The blank as forth in claim 2, wherein each bow-tie lock is defined by a pair of perforated score lines that diverge from an area at an outer longitudinal side of the corresponding top end flap.

4. The blank as set forth in claim 3, wherein the perforated score lines of each bow-tie lock have distal ends connected by a second lateral slit that is bisected by an end of the longitudinal slit.

5. The blank as set forth in claim 4, wherein each top end flap is divided into two half sections along a first portion by the longitudinal slit and along a remaining portion by a central score line extending longitudinally across the bow-tie lock, and the two half sections of each top end flap are pivotable relative to each other about the bow-tie lock during formation of the container to position the outer longitudinal sides of the two half sections adjacent to each other.

6. The blank as set forth in claim 1, wherein each of the second sections include a side wall and first and second end wall panels connected to opposing longitudinal ends of the side wall along respective lateral score lines.

7. The blank as set forth in claim 6, wherein first lateral slits span between the first longitudinal score lines, and the lateral score lines are collinear with respective ones of the first lateral slits.

8. The blank as set forth in claim 6, wherein a lateral edge of each of the end wall panels is connected to a lateral edge of one of the top end flaps at a respective first longitudinal score line.

9. The blank as set forth in claim 6, wherein each of the third sections include a bottom lateral flap connected to one of the side walls at a respective second longitudinal score line, and one of the third sections further includes first and second bottom end flaps connected to adjacent first and second end wall panels along one of the second longitudinal score lines.

10. A container including a pair of opposing side walls and a pair of opposing end walls, a top lateral flap hingedly connected to each side wall, a top end flap hingedly connected to each end wall, and bottom flaps hingedly connected to the side walls and the end walls, the container further comprising:

each top end flap comprising two half sections separated by a flap slit; and

each top end flap further comprising a bow-tie lock integrally formed as part of the two half sections of the top end flap, the bow-tie lock spanning the flap slit and connecting the two half sections.

11. The container as set forth in claim 10, wherein each bow-tie lock defines a triangular section having a base extending laterally across the flap slit and sides extending diagonally from the base to a point at the flap slit.

12. The container as set forth in claim 10, wherein each end wall comprises an inner end wall panel hingedly connected to one of the side walls and an outer end wall panel hingedly connected to the other of the side walls and overlapping an adjacent inner end wall panel.

13. The container as set forth in claim 12, wherein one of the two half sections of each top end flap is hingedly connected to one of the inner end wall panels and the other of the two half sections is hingedly connected to one of the outer end wall panels.

14. A method of forming a container from a blank, the blank comprising a central first section;

a pair of second sections connected to the first section along a respective first longitudinal score line, the second sections defining side walls and end walls of the container and comprising first and second end wall panels connected at lateral score lines to longitudinal ends of each of the side walls;

a pair of third sections, each third section connected to a second section along a respective second longitudinal score line, the third sections defining bottom flaps of the container;

the first section including a pair of top lateral flaps located on either side of a longitudinal slit that divides the blank in half, and a pair of top end flaps spanning across opposing longitudinal ends of the top lateral flaps;

each top end flap including a triangular section defining a bow-tie lock connecting two halves of the blank on either side of the longitudinal slit, the method comprising;

folding the blank in half at the longitudinal slit line to position a first half of the blank adjacent to a second half of the blank; and

folding the first and second end wall panels about the lateral score lines to orient the end wall panels perpendicular to the side walls, wherein the end walls of the container are each defined by a pair of the end wall panels positioned in overlapping relationship adjacent to each other.

15. The method as set forth in claim 14, wherein each top end flap comprises two half sections and a bow-tie lock integrally formed as part of the two half sections.

16. The method as set forth in claim 15, wherein the two half sections of each top end flap are pivotable relative to each other about the bow-tie lock during folding of the blank so as to position outer longitudinal sides of the two half sections adjacent to each other and define a flap slit separating the two half sections.

17. The method as set forth in claim 14, wherein the end wall panels defining each end wall comprise adjacent inner and outer end wall panels, and one of the two half sections of each top end flap is hingedly connected to one of the inner end wall panels and the other of the two half sections is hingedly connected to one of the outer end wall panels.