Internal corner structure for mattress foundations
View Patent ↗An internal corner structures for mattress foundations that sit at each corner between the frame and the grid. The rigid member contains a base, body and grid support deck. The base member sits atop the foundation frame and contains two flanges that overlap the frame and guide the positioning of the internal corner structure relative to the frame. The body structure supports the grid deck and has a rounded exterior profile to provide a rounded smooth contour to the mattress foundation corners, and has a plurality of square shaped openings that extend in both a vertical and horizontal direction. The grid support deck sits atop the body structure and provides support to the mattress foundation grid, and has engagement clips that engage and position the grid and an edge guard that functions to disperse a load and protect the engagement clips from impact.
1. A mattress foundation comprising:
a substantially rectangular frame comprised of interconnected and intersecting frame members;
a wire grid;
a plurality of similarly formed springs which are interconnected in an array or matrix and located between the frame and the grid;
four internal corner structures, one located at each corner of the frame between the frame and the grid, said internal corner structures comprising:
a generally planar base member dimensioned to fit within the width dimension of a top surface of the foundation frame members with three generally linear sides and an arcuate transition between two of the linear sides and containing two flanges located along the arcuate transition that extend down over the foundation frame member and a tongue, which is a planar member that extends horizontally from the three generally linear sides and contains two staple arches that sit parallel to each other;
a body structure located on top of the base member which has an exterior profile that includes a rounded corner and three generally linear sides with a lattice pattern made up of a plurality of square shaped openings extending both vertically and horizontally across the structure;
a grid support deck located on top of the body structure that has a generally planar surface with three linear sides and an arcuate transition between two of the linear sides and containing an edge guard located at the center of the arcuate transition, two engagement clips located at opposite ends of the arcuate transition, and two notches used to receive the two staple arches upon nesting of two corner structures.
2. The mattress foundation of claim 1 wherein the internal corner guard structure is injection molded.
3. The mattress foundation of claim 1 wherein the internal corner guard structure is made out of polypropylene.
4. The mattress foundation of claim 1 wherein the internal corner guard structure is approximately 7.8 inches high, 4.4 inches wide and 2.5 inches deep.
5. The mattress foundation of claim 1 wherein the internal corner guard structures weighs approximately 0.19 lbs.
6. The mattress foundation of claim 1 wherein the internal corner guard structure has an internal volume of approximately 5.79 cubic inches.
7. The mattress foundation of claim 1 wherein the internal corner guard structure is symmetrically designed to be used at any corner of the mattress foundation.
8. The mattress foundation of claim 1 wherein the engagement clips of the internal corner guard structure are used to position the mattress foundation grid.
9. The mattress foundation of claim 1 wherein the internal corner guard structure is capable of nesting within other corner guard structures.
10. The mattress foundation of claim 1 wherein the internal corner guards structures are stapled to the mattress foundation frame.
11. An internal corner guard structure for a mattress foundation comprising:
a generally planar base member dimensioned to fit within the width dimension of a top surface of a foundation frame with three generally linear sides and an arcuate transition between two of the linear sides,
two flanges located along the arcuate transition that extend down over the foundation frame member and a tongue, which is a planar member that extends horizontally from the three generally linear sides and contains two staple arches that sit parallel to each other;
a body structure located on top of the base member, the body structure having an exterior profile that includes a rounded corner and three generally linear sides with a lattice pattern made up of a plurality of square shaped openings extending both vertically and horizontally across the structure;
a grid support deck located on top of the body structure that has a generally planar surface with three linear sides and an arcuate transition between two of the linear sides and containing an edge guard located at the center of the arcuate transition,
two engagement clips located at opposite ends of the arcuate transition, and two notches used to receive the two staple arches upon nesting of two corner structures.
12. The mattress foundation of claim 11 wherein the internal corner guard structure is injection molded.
13. The mattress foundation of claim 11 wherein the internal corner guard structure is made out of polypropylene.
14. The mattress foundation of claim 11 wherein the internal corner guard structure is approximately 7.8 inches high, 4.4 inches wide and 2.5 inches deep.
15. The mattress foundation of claim 11 wherein the internal corner guard structures weighs approximately 0.19 lbs.
16. The mattress foundation of claim 11 wherein the internal corner guard structure has an internal volume of approximately 5.79 cubic inches.
17. The mattress foundation of claim 11 wherein the internal corner guard structure is symmetrically designed to be used at any corner of the mattress foundation.
18. The mattress foundation of claim 11 wherein the engagement clips of the internal corner guard structure are used to position the mattress foundation grid.
19. The mattress foundation of claim 11 wherein the internal corner guard structure is capable of nesting within other corner guard structures.
20. The mattress foundation of claim 11 wherein the internal corner guards structures are stapled to the mattress foundation frame.