Self-interlocking resinous frame for sleeping mattresses

Abstract

Described in the prior art, but uniquely more modifiable for the present invention, is the general concept of horizontally framing horizontal sleeping mattresses with resiliently compressive elongate resinous bars, especially bars constructed throughout of polyurethane resinous materials. Departing from the prior art, the present invention describes, for selectable horizontal mattresses, a surrounding framework wherein the four confronting elongate resinous bars are self-interlocking in cornerwise relationship with the abuttably surrounded horizontal mattress. Such self-interlocking relationship for confronting bars is enabled by unitarily constructing within inter-bars confrontational portions, specially constructed and locatable tongue-and-groove mateable capabilities, and thusly satisfying the sought objectives of the present invention.

1 . For the environment of a selectable sleeping mattress having a substantially rectangular and horizontal upper sleeping surface, and which is uprightly peripherally defined by: four cornerwise locations, and also two parallel longitudinal-edges which are cornerwise interrupted by two parallel transverse-edges, an improved structure for and comprising four elongate bars each being respectively unitarily constructed throughout of resiliently compressive resinous structural material, and each being lengthwise throughout of substantially rectangular cross-sectional shape, and said bars including: 
 (A1) a pair of directionally longitudinal-bars respectively extending along a central-longitudinal-axis therefor between upright endwise-terminii and uprightly flanked by an outer-surface parallel to an upright inner-surface that substantially uprightly abuts a mattress upright longitudinal-edge,    (A2) a pair of directionally transverse-bars respectively extending along a central transverse-axis therefor between upright endward-terminii and uprightly flanked by an outward-surface parallel to an upright inward-surface that substantially uprightly abuts a mattress upright transverse-edge, and    whereby said bars' intervening inner-surfaces and inward-surfaces intersect immediately directionally outwardly about a mattress upright corner location; and    (B) within the said unitary constructions among said four four elongate bars, and located outwardly about mattress corner locations, linearly-defined tongue-and-groove mateable bars' intersections and there for interlocking each said longitudinal-bar with a said confronting transverse-bar.    
   
   
       2 . The improved structure of  claim 1  (currently amended) wherein the said respective tongue-and-groove mateable configurations are respectively located between a longitudinal-bars' central longitudinal-axis and inner-surface therefor, and also between a transverse-bars' central transverse-axis and inward-surface therefor.  
   
   
       3 . The improved structure of  claim 2  wherein the tongue portion of each said tongue-and-groove mateable configurations is uprightly instuted at oppositely disposed uprightly at directionally transversely located endward terminii of said transverse-bars and for removable engagement with uprightly grooved portions instituted at a longitudinal-bar inner-surface.  
   
   
       4 . The improved structure of  claim 3  wherein the inward-surfaces of the transverse-bars at said endward-terminii concavely intersect a longitudinal-bar inner-surface.  
   
   
       5 . The improved structure of  claim 4  wherein said inner-surface grooved longitudinal-bars and said tongued transverse-bars are respectively constructed throughout of polyurethane resinous material.  
   
   
       6 . The improved structure of  claim 2  wherein the tongue portion of each said tongue-and-groove mateable configurations is uprightly instuted from a longitudinal-bar inner-surface for removable engagement with an upright groove at a transverse-bar endward-terminus.  
   
   
       7 . The improved structure of  claim 6  wherein also there is a concave intersection between longitudinal-bar inner-surface and transverse-bar inward-surface; and wherein said configured longitudinal-bars and transverse-bars are respectively constructed throughout of poly-urethane resinous material.  
   
   
       8 . The improved structure of  claim 2  wherein adjacent each said tongue-and-groove removably interlocking mattress-cornerwise intersection, the transverse-bar outward-surface is uprightly co-planar with the longitudinal-bar endwise-terminus; and wherein said longitudinal-bars and transverse-bars, and including their tongue-and-groove mateable capabilities, are constructed throughout of polyurethane resinous material.