Lug box having cored-out plastic end walls

• US 4,211,358 A
• Filed: 01/10/1979
• Issued: 07/08/1980
• Est. Priority Date: 09/26/1977
• Status: Expired due to Term

• Current Assignee: Industrial Designs & Services
• Original Assignee: Industrial Designs & Services
• Inventors: Crane, Walton B.
• Primary Examiner(s): Moorhead, Davis T.
• Application Number:
  US06/002,295
• Time in Patent Office: 545 Days
• Field of Search: 229/23 R, 206/523
• US Class Current: 229/122.22
• CPC Class Codes: B65D 15/22 of polygonal cross-section
• CPC Class Codes: B65D 21/0212 Containers presenting local stacking elements protruding from the upper or lower edge of a side wall, e.g. handles, lugs, ribs, grooves B65D21/0211, B65D21/0215, B65D21/023 take precedence

Abstract

A lug box having cored-out plastic end walls and a wrapper, preferably of corrugated paperboard, that is nailed to the end walls. The wrapper is formed by a single piece including bottom and side panels as well as foldably attached lid flaps that provide a top for the box. Each end wall has parallel ribs extending along its bottom and side edges that receive the nails. Reinforcing ribs in the center sections of the end walls lend added rigidity and strength.

Claims

1. A lug box for holding produce and the like comprising:

a pair of parallel end walls defining opposite ends of said box, each of said end walls being generally rectangular and cored-out, having top, bottom and side edges, at least one horizontal nailing rib adjacent said bottom edge and at least one vertical nailing rib adjacent each of said side edges;

a wrapper having a bottom panel extending between and overlappng said bottom edges, a pair of side panels extending between and overlapping said side edges, and at least one lid flap extending between said top edges; and

a plurality of nails driven through said wrapper into said ribs to secure said wrapper to said end walls, said nails being substantially perpendicular to at least some of said nailing ribs.

2. A lug box for holding produce and the like comprising:

a pair of parallel end walls defining opposite ends of said box, each of said end walls being generally rectangular and cored-out, having top, bottom and side edges, at least one horizontal nailing rib adjacent said bottom edge and at least one vertical nailing rib adjacent each of said side edges;

a wrapper having a bottom panel extending between and overlapping said bottom edges, a pair of side panels extending between and overlapping said side edges, and a pair of lid flaps foldably joined to said side panels, said lid flaps having closed positions in which they extend between said top edges; and

a plurality of nails driven through said wrapper into said ribs to secure said wrapper to said end walls, said nails being substantially perpendicular to at least some of said nailing ribs.

3. The lug box of claim 2 further comprising means for holding said lid flaps in said closed positions.

4. The lug box of claim 2 wherein:

each of said lid flaps has a tab projecting from each end thereof; and

each of said end walls defines pockets along the top edge thereof, each pocket being positioned to receive and retain one of said tabs when said lid flaps are in said closed positions.

5. The lug box of claim 2 wherein said wrapper is a single integrally formed sheet of material.

6. The lug box of claim 2 wherein said wrapper is a single sheet of corrugated paperboard.

7. The lug box of claim 2 wherein:

said wrapper is a single integrally formed sheet of material and each of said lid flaps has an integral tab projecting from each end thereof; and

each of said end walls defines at least one pocket positioned to receive and retain one of said tabs when said lid flaps are in said closed positions.

8. The lug box of claim 2 wherein:

each of said lid flaps has a tab projecting from each end thereof; and

said end walls define pockets positioned to receive a corresponding one of said tabs, each of said pockets having slots in the top thereof through which said corresponding tab can be inserted and removed.

9. The lug box of claim 8 wherein said wrapper is integrally formed of a single sheet of corrugated paperboard.

10. The lug box of claim 8 wherein said wrapper defines notches separating said side panels from said lid flaps at the ends thereof, thereby facilitating the bending of said lid flaps to insert said tabs in said pockets.

11. The lug box of claim 2 further comprising means for interlocking a plurality of such boxes in a stacked relationship.

12. The lug box of claim 2 wherein said end walls are approximately 75 to 80 percent cored out.

13. The lug box of claim 2 wherein said end walls have angled shoulders joining said edges thereof.

14. The lug box of claim 2 wherein:

said end walls have angled shoulders joining said edges thereof; and

said wrapper is a single integrally formed sheet of material folded along score lines that correspond to the intersection of said shoulders with said edges.

15. The lug box of claim 2 wherein each of said end walls has a center section bounded at its bottom and on its sides by said nailing ribs, said center section having a plurality of intersecting diagonal reinforcing ribs.

16. The lug box of claim 2 wherein said nailing ribs are arranged in sets of at least two extending along said bottom and side edges, the ribs of each of said sets being parallel to each other.

17. The lug box of claim 16 further comprising a plurality of spacer ribs by which said nailing ribs of each set are separated from each other.

18. A lug box for holding produce and the like comprising:

a pair of parallel end walls defining opposite ends of said box, each of said end walls being generally rectangular, approximately 75 to 80 percent cored-out, having top, bottom and side edges, four shoulders joining said edges, a plurality of horizontal nailing ribs adjacent said bottom edge, a plurality of spacer ribs by which said horizontal nailing ribs are separated from each other, a plurality of vertical nailing ribs adjacent said side edges, and a plurality of spacer ribs by which said vertical nailing ribs are separated from each other;

a center section bounded on its bottom and its sides by said nailing ribs, and a plurality of intersecting diagonal reinforcing ribs within said center section;

a wrapper formed by a single integrally formed sheet of corrugated paperboard having a bottom panel extending between and overlapping said bottom edges, a pair of side panels extending between and overlapping said side edges, a pair of lid flaps depending from said side panels and having closed positions in which they extend between said top edges, and a plurality of tabs extending from said lid flaps, said wrapper being folded along score lines that correspond to the intersection of said shoulders with said edges;

a plurality of pockets defined by said end walls positioned to receive and retain said tabs when said lid flaps are in said closed positions; and

a plurality of nails driven through said wrapper into said nailing ribs to secure said wrapper to said end walls, said nails being substantially perpendicular to at least some of said nailing ribs.

19. A lug box for holding produce and the like comprising:

a pair of parallel end walls defining opposite end of said box, each of said end walls being generally rectangular, having top, bottom and side edges, at least one horizontal nailing rib adjacent said bottom edge, at least one vertical nailing rib adjacent each of said side edges, and a plurality of intersecting diagonal reinforcing ribs defining a center section thereof, said end walls being about 75 to 80 percent cored out to leave open spaces bounded by said edges, nailing ribs and, reinforcing ribs;

a one piece wrapper having a bottom panel extending between an overlapping said bottom edges, a pair of side panels extending between and overlapping said side edges, a pair of lid flaps having closed positions in which they extend between said top edges, and a plurality of tabs projecting from said lid flaps;

a plurality of nails driven through said wrapper into said nailing ribs to secure said wrapper to said end walls; and

a plurality of pockets defined by said end walls positioned to receive said tabs when said lid flaps are in said closed positions.