Container with cover and closure member

1. An insulated container assembly comprising:

a first portion and a second portion co-operable therewith;

said first portion having a soft-sided insulated wall structure and a receptacle therein,

said receptacle being made of a stiffer material than said soft sided wall structure and having an opening, said opening having a land adjacent thereto,

said land being a region of said receptacle extending about said opening;

said second portion being hingedly connected to said first portion;

said second portion including a closure member operable to control access to said receptacle; and

said closure member including a stiffened member operable to engage said land in an interference fit, said stiffened member being a surround wherein, when said surround engages said land, hoop stresses are developed in at least one of (a) said land; and (b) said surround.

2. The insulated container assembly of claim 1 wherein, when said surround engages said land, a compressive hoop stress is generated in one of (a) said land; and (b) said surround, and tensile hoop stresses are generated in the other.

3. The insulated container assembly of claim 1 wherein said receptacle includes a bottom and a peripheral sidewall standing away from said bottom, said peripheral sidewall being divergent.

4. The insulated container assembly of claim 3 wherein said stiffened member of said closure member includes a depending wall, and said depending wall is outwardly splayed.

5. The insulated container assembly of claim 3 wherein a thermal storage element is matingly engageable with said stiffened member of said second portion of said insulated container assembly.

6. The insulated container assembly of claim 5 wherein said thermal storage element is alternately locatable in said second portion of said container assembly and in said first portion of said container assembly.

7. The insulated container assembly of claim 6 wherein, when said closure member is in an open position, and said thermal storage element is engaged in said second portion, said thermal storage element presents a support surface for objects withdrawn from said first portion of said container assembly.

8. The insulated container assembly of claim 5 wherein said thermal storage element includes a flat surface, and said thermal storage element is movable to permit said flat surface to act as a support surface for objects removed from said first portion of said container assembly.

9. The insulated container assembly of claim 1 wherein said land and said stiffened member are co-operable to form a seal.

10. The insulated container assembly of claim 1 wherein said stiffened member includes a bead and said bead is engageable with said land.

11. The insulated container assembly of claim 1 wherein said stiffened member is a surround, said receptacle is made of a stiffer material than said soft sided wall structure, and said land is a region of said receptacle extending about said opening.

12. The insulated container assembly of claim 5 wherein said thermal storage element includes at least one recess formed therein.

13. The insulated container assembly of claim 5 wherein said thermal storage element has at least one cup-holder recess formed therein.

14. The insulated container assembly of claim 5 wherein said thermal storage element has an internal cavity for containing a thermal storage medium, and said cavity is refillable.

15. The insulated container assembly of claim 1 further comprising a mechanical attachment element operable to secure said second portion in a closed position relative to said first portion.

16. The insulated container assembly of claim 1 further comprising a grip member by which to urge said stiffened member to a disengaged position relative to said land.

17. The insulated container assembly of claim 1 wherein said land and said stiffened member define an engagement interface of said second portion of said container assembly with said first portion of said container assembly, and said interface is zipperless.

18. An insulated, soft-sided container assembly comprising:

a body assembly and a lid assembly hingedly joined to said body assembly;

said body assembly including a soft-sided outer casing and an internal hard-shell receptacle;

said receptacle having a divergent mouth;

said lid assembly being movable relative to said body assembly between an open position and a closed position:

in said closed position said lid assembly being positioned to obstruct said mouth of said receptacle:

said lid including a formed structural member having a periphery for mating engagement with said mouth of said receptacle;

said formed structural member having a cantilevered leg, said cantilevered leg having a peripherally outward splay prior to insertion into said divergent mouth of said receptacle; and

said cantilevered leg of said structural member being engageable in an interference fit with said mouth of said receptacle in which said peripherally outwardly splayed cantilevered leg is deflected peripherally inwardly.