Container with sleeve interlocking latch

• US 4,936,451 A
• Filed: 07/14/1988
• Issued: 06/26/1990
• Est. Priority Date: 04/23/1986
• Status: Expired due to Term

• Current Assignee: Lyle H. Shuert
• Original Assignee: Lyle H. Shuert
• Inventors: Shuert, Lyle H.
• Primary Examiner(s): Gehman, Bryon P.
• Application Number:
  US07/219,042
• Time in Patent Office: 712 Days
• Field of Search: 220/73, 220/74, 220/4 F, 220/1.5, 229/104, 206/386, 206/598, 206/599, 206/600, 108/55.1, 108/56.1, 108/56.3, 108/901
• US Class Current: 206/386
• CPC Class Codes: B29K 2023/06 PE, i.e. polyethylene
• CPC Class Codes: B65D 15/22 of polygonal cross-section
• CPC Class Codes: B65D 19/06 with bodies formed by uniting or interconnecting two or more components
• CPC Class Codes: B65D 2519/00034 Plastic
• CPC Class Codes: B65D 2519/00069 Plastic
• CPC Class Codes: B65D 2519/00159 Paper
• CPC Class Codes: B65D 2519/00208 Plastic
• CPC Class Codes: B65D 2519/00268 made of one piece
• CPC Class Codes: B65D 2519/00288 made of one piece
• CPC Class Codes: B65D 2519/00318 made of one piece
• CPC Class Codes: B65D 2519/00338 contact surface having a discrete foot-like shape
• CPC Class Codes: B65D 2519/00497 whereby at least one side wall is made of one piece
• CPC Class Codes: B65D 2519/00557 without separate auxiliary elements
• CPC Class Codes: B65D 2519/00597 integrally formed
• CPC Class Codes: B65D 2519/00621 sidewalls directly connected to each other
• CPC Class Codes: B65D 2519/00646 by means of hinges
• CPC Class Codes: B65D 2519/00711 removable lid or covers
• CPC Class Codes: B65D 2519/0091 whereby all side walls are hingedly connected to each other
• CPC Class Codes: B65D 2519/0096 when empty

Abstract

A plastic reinforcing structure for use with a container of the type including a corrugated sleeve adapted to be removably attached to a plastic pallet or base member by the use of sliding latch members coacting with slots in the lower peripheral portion of the sleeve. The reinforcing structure is formed as a single piece of plastic material and includes an inner planar portion, an outer planar portion, a central wall portion, and inner and outer tubular portions carrying lips on their leading edges. In use, the central wall of the reinforcing structure is positioned under and along the lower edge of the sleeve beneath a slot in the sleeve and the inner and outer planar portions are swung upwardly about live hinges provided between the bottom wall and the inner and outer planar portions. As the inner and outer portions are swung upwardly and inwardly, the tubular portions enter the slot from the inner and outer faces of the sleeve and the lips on the tubular portions lockingly coact to positively secure the reinforcing structure to the sleeve with the tubular portions providing a liner for the slot in the sleeve and the planar portions positioned against protecting the outer and inner faces of the sleeve surrounding the slot.

Claims

1. A container comprising:

(A) an end unit assembly including an end unit and a plurality of sliding latch members mounted on said end unit in circumferentially spaced locations around the periphery thereof;

(B) a sleeve including an edge seating on said end unit and including a plurality of slots adjacent said edge for locking receipt of said latch members;

(C) a plurality of reinforcing structures for respective coaction with said slots, each reinforcing structure including an outer planar portion positioned against the outer face of said sleeve adjacent its respective slot, an inner planar portion positioned adjacent the inner face of said sleeve adjacent said slot, liner means positioned in said slot and lining edges of said slot to define a passage extending between said outer face of said sleeve and said inner face of said sleeve for through passage of said latch members, and locking means operative in response to insertion of said liner means into said slot to lock said inner and outer planar portions together with said outer planar portion positioned against the outer face of said sleeve and said inner planar portion positioned against said inner face of said sleeve.

2. A container according to claim 1 wherein:

(D) said liner means of each reinforcing structure includes an inner tubular portion projecting into said slot from said inner planar portion and an outer tubular portion projecting into said slot from said outer planar portion.

3. A container according to claim 2 wherein said tubular portions each define a free inboard end and wherein:

(E) said locking means includes coacting locking means on the inboard ends of said tubular portions operative to lock the inboard ends of said tubular portions together in response to insertion of said tubular portions into said slot.

4. A container according to claim 3 wherein:

(F) said coacting locking means includes a lip on the inboard end of said inner tubular portion and a coacting lip on the inboard end of said outer tubular portion.

5. A container according to claim 4 wherein:

(G) said lip on said inner tubular portion includes a leading cam face terminating in a lock face; and

(H) said lip on said outer tubular portion includes a leading cam face, complemental to said cam face on said inner tubular portion lip, and terminating in a lock face.

6. A container according to claim 5 wherein:

(I) said lips are resilient and flex inwardly and outwardly in response to engagement of said complemental cam faces to allow said lips to pass one another and then snap back inwardly and outwardly to lockingly engage said lock faces.

7. A container according to claim 6 wherein:

(J) said tubular portions are generally rectangular and include parallel sidewalls and parallel end walls;

(K) said lips are provided on said sidewalls of said inner and outer tubular portions; and

(L) said sidewalls of said inner tubular member are equal in length to said sidewalls of said outer tubular member and said end walls of said inner tubular portion are shorter than end walls of said outer tubular portion so that, as said tubular portions are inserted into said slot, said end walls of said inner tubular member move into abutting engagement with said end walls of said outer tubular member and said lips on said sidewalls of said inner tubular member move telescopically within said lips on said sidewalls of said outer tubular member.

8. A container according to claim 2 wherein:

(E) each reinforcing structure is formed of a single piece of material with a central wall portion interposed between said inner and outer planar portions and sized to fit along said edge of said sleeve adjacent the corresponding slot; and

(F) hinge means are provided between said central wall portion and said inner and outer planar portions to allow said central wall to be positioned along said edge of said sleeve adjacent the slot and said inner and outer planar portions to be pivoted inwardly to insert said tubular portions into said slot and position said inner and outer planar portions respectively against the inner and outer faces of said sleeve.

9. A container comprising:

(A) a base assembly including a base member and a plurality of sliding latch members mounted on said base member at circumferentially spaced locations around the periphery thereof;

(B) a sleeve including a lower edge seated on said base member and including a plurality of slots adjacent its lower edge for locking receipt of said latch members; and

(C) a plurality of reinforcing structures for respective coaction with said slots, each reinforcing structure including coacting portions entering its respective slot from opposite sides thereof and means operative in response to entry of said coacting portions into said slot to lockingly secure said coacting portions together.

10. A container according to claim 9 wherein:

(D) said coacting portions of each reinforcing structure coact telescopically as they enter said slot from said opposite sides thereof.

11. A sleeve assembly for use with an end unit to form a container, said sleeve assembly comprising:

(A) a sleeve including an edge adapted to seat on the end unit and including a plurality of slots adjacent aid edge for locking receipt of latch members carried by the end unit; and

(B) a plurality of reinforcing structures for respective coaction with said slot, each reinforcing structure including an outer planar portion positioned against the outer face of said sleeve adjacent said slot, an inner planar portion positioned against the inner face of said sleeve adjacent said slot, liner means positioned in said slot and lining edges of said slot to define a passage extending through said slot, and locking means operative in response to insertion of said liner means into said slot to lock said inner and outer planar portions together with said outer planar portion positioned against the outer face of said sleeve and said inner planar portion positioned against said inner face of said sleeve;

(C) said liner means of each reinforcing structure including an inner tubular portion projecting into said slot from said inner planar portion and an outer tubular portion projecting into said slot from said outer planar portion;

(D) said tubular portions each defining a free inboard end and said locking means including coacting locking means on the inboard ends of said tubular portions operative to lock the inboard ends of said tubular portions together in response to insertion of said tubular portions into said slot.

12. A sleeve assembly according to claim 11 wherein:

(E) said coacting locking means includes a lip on the inboard end of said inner tubular portion and a coacting lip on the inboard end of said outer tubular portion.

13. A sleeve assembly according to claim 12 wherein:

(F) said lip on said inner tubular portion includes a leading cam face terminating in a lock face; and

(G) said lip on said outer tubular portion includes a leading cam face, complemental to said cam face on said inner tubular portion lip, terminating in a lock face.

14. A sleeve assembly according to claim 13 wherein:

(H) said lips are resilient and flex inwardly and outwardly in response to engagement of said complemental cam faces to allow said lips to pass one another and then snap back inwardly and outwardly to lockingly engage said lock faces.

15. A sleeve assembly according to claim 14 wherein:

(I) said tubular portions are generally rectangular and include parallel sidewalls and parallel end walls;

(J) said lips are provided on said sidewall of said inner and said outer tubular portions; and

(K) said sidewalls of said inner tubular portion are equal in length to said sidewalls of said outer tubular portion and said end walls of said inner tubular portion are shorter than said end walls of said outer tubular portion so that, as said tubular portions are inserted into said slot, said end walls of said inner tubular portion move into abutting engagement with said end walls of said outer tubular portion and said lips on said sidewalls of said inner tubular portion move telescopically within said lips on said sidewalls of said outer tubular portion.

16. A reinforcing structure for use with a sleeve having at least one slot positioned adjacent an edge of the sleeve, said reinforcing structure comprising:

(A) an outer planar portion adapted to be positioned against the outer face of the sleeve adjacent the slot;

(B) an inner planar portion adapted to be positioned adjacent the inner face of the sleeve adjacent the slot;

(C) liner means including an inner tubular portion adapted to project into the slot from said inner planar portion and an outer tubular portion adapted to project into the slot from said outer planar portion, said tubular portions each defining an inboard free end; and

(D) coacting locking means on the inboard free ends of said tubular portions operative in response to insertion of said tubular portions into the slot to lock said inner and outer planar portions together with said outer planar positioned against the outer face of the sleeve, said inner planar portion positioned against the inner face of the sleeve, and said tubular portions positioned within the slot.

17. A reinforcing structure according to claim 16 wherein:

(G) said coacting locking means includes a lip on the inboard end of said inner tubular portion and a coacting lip on the inboard end of said outer tubular portion.

18. A reinforcing structure according to claim 17 wherein:

(H) said lip on said inner tubular portion includes a leading cam face terminating in a lock face; and

(I) said lip on said outer tubular portion includes a leading cam face, complemental to said cam face on said inner tubular portion lip, terminating in a lock face.

19. A reinforcing structure according to claim 17 wherein:

(J) said lips are resilient and flex inwardly and outwardly in response to engagement of said complemental cam faces to allow said lips to pass one another and then snap back inwardly and outwardly to lockingly engage said lock faces.

20. A reinforcing structure according to claim 19 wherein:

(K) said tubular portions are generally rectangular and include parallel sidewalls and parallel end walls;

(L) said lips are provided on said sidewalls of said inner and outer tubular portions; and

(M) said sidewalls of said inner tubular portion are equal in length to said sidewalls of said outer tubular portion and said end walls of said inner tubular portion are shorter than said end walls of said outer tubular portion so that, as said tubular portions are inserted into the slot, said end walls of said inner tubular portion move into abutting engagement with said end walls of said outer tubular portion and said lips on said sidewalls of said inner tubular portion move telescopically within said lips on said sidewalls of said outer tubular portion.

21. A sleeve assembly for use with an end unit to form a container, said sleeve assembly comprising:

(A) a sleeve including an edge adapted to seat on the end unit and including a plurality of slots adjacent said edge for locking receipt of latch members carried by the end unit;

(B) a plurality of reinforcing structures for respective coaction with said slots, each reinforcing structure including an outer planar portion positioned against the outer face of said sleeve adjacent its respective slot, an inner planar portion positioned adjacent the inner face of said sleeve adjacent said slot, liner means positioned in said slot to line edges of said slot and defining a through passage extending through said slot from the outer face of said sleeve to the inner face of said sleeve for passage of a latch member carried by said end unit, said liner means including an inner tubular portion projecting into said slot from said inner planar portion and an outer tubular portion projecting into said slot from said outer planar portion, and locking means operative in response to insertion of said tubular portions into said slot to lock said inner and outer planar portions together with said outer planar portion positioned against the outer face of said sleeve and said inner planar portion positioned against said inner face of said sleeve.

22. A sleeve assembly according to claim 21 wherein:

(C) each reinforcing structure is formed of a single piece of material with a central wall portion interposed between said inner and outer planar portions and sized to fit along said edge of said sleeve adjacent the corresponding slot; and

(E) hinge means are provided between central wall portion and said inner and outer planar portions to allow said central wall portion to be positioned along said edge of said sleeve and said inner and said outer planar portions to be pivoted inwardly to insert said tubular portions into said slot and position said inner and outer planar portions respectively against said inner and outer faces of said sleeve.

23. A sleeve assembly according to claim 22 wherein:

(F) each reinforcing structure is formed of a single piece of plastic material.

24. A sleeve assembly according to claim 23 wherein:

(G) said sleeve is formed of a corrugated cardboard material.

25. A reinforcing structure for use with a sleeve having at least one slot positioned adjacent an edge of the sleeve, said sleeve being intended for releasable securement to an end unit to form a container by the use of a latch member carried by the end unit and passing through the slot, said reinforcing structure comprising:

(A) an outer planar portion adapted to be positioned against the outer face of the sleeve adjacent the slot;

(B) an inner planar portion adapted to be positioned against the outer face of the sleeve adjacent the slot;

(C) liner means adapted to be positioned in the slot to line edges of the slot and define a through passage extending through the slot from the inner face of the sleeve to the outer face of the sleeve for through passage of the latch member; and

(D) locking means operative in response to insertion of said liner means into the slot to lock said inner and outer planar portions together with said outer planar portion positioned against the outer face of the sleeve, said inner planar portion positioned against the inner face of the sleeve, and said liner means positioned within the slot and defining a through passage extending through the slot for through passage of the latch member;

(E) said liner means including an inner tubular portion adapted to project into the slot from said inner planar portion and an outer tubular portion adapted to project into the slot from the outer planar portion.

26. A reinforcing structure according to claim 25 wherein:

(F) said reinforcing structure is formed of a single piece of material with a central wall portion interposed between said inner and outer planar portions and sized to fit along the edge of the sleeve adjacent the slot; and

(G) hinge means are provided between said central wall portion and said inner and outer planar portions to allow said central wall portion to be positioned along the edge of the sleeve and said inner and outer planar portions to be pivoted inwardly to insert the tubular portions into the slot and position said inner and outer planar portions respectively against the inner and outer faces of the sleeve.

27. A reinforcing structure according to claim 26 wherein:

(H) said reinforcing structure is formed as a single piece of plastic material.