초록 ▼

A resilient mat system has at least one mat with a mat thickness T, an upper layer with an upper layer thickness t, and a plurality of supporting resilient substructure columns, each column having a relatively uniform height h, such that T=t+h, wherein the ratio of h:t>3.5 for values of T> abo

A resilient mat system has at least one mat with a mat thickness T, an upper layer with an upper layer thickness t, and a plurality of supporting resilient substructure columns, each column having a relatively uniform height h, such that T=t+h, wherein the ratio of h:t>3.5 for values of T> about 0.9 inch. Each column wall surrounds a central void in the column, the void opening at a bottom of the column. The column has in a bottom region of the column wall a lower zone that is a more compressible, relatively collapsible zone, and in an upper region of the column wall above the lower zone an upper zone that is a less compressible, relatively uncollapsible zone. The resilient mat system optionally has a relatively rigid ramp structure bordering at least one mat on at least two sides, and the ramp structure is preferably attached to a floor base to retain the mat, whereby the mat is removable from the border of the ramp. Alternatively, the ramp structure is attached to at least a portion of the mat. A column may optionally have a vertical stiffening rib along a portion of the upper zone of the column wall and the stiffening rib increases in thickness at heights above a rib bottom, with the rib optionally connecting two columns. The column is preferably tapered upwardly, both inside and out, with an outside draft angle >1 degree and <5 degrees, and an inside draft angle >0 degrees and <5 degrees. Preferably, the outside draft angle is greater than the inside draft angle.

대표청구항 ▼

We claim: 1. A resilient substructure, the substructure comprising: a resilient column; a central void in the column, the void opening at a bottom of the column; the column having a column wall, the column wall surrounding the central void from the top of the void to the bottom of the column; the c

We claim: 1. A resilient substructure, the substructure comprising: a resilient column; a central void in the column, the void opening at a bottom of the column; the column having a column wall, the column wall surrounding the central void from the top of the void to the bottom of the column; the column having in a bottom region of the column wall a lower zone that is relatively more compressible and collapsible than an upper zone in an upper region of the same column wall; and wherein the column wall has a cross-sectional thickness that increases from the bottom of the wall to the top of the void to form a frusto-conically shaped column. 2. The substructure of claim 1 further comprising a vertical stiffening rib along a portion of the upper zone of the column wall. 3. The substructure of claim 2, wherein the stiffening rib increases in thickness at heights above a rib bottom, and the rib connects two columns. 4. The substructure of claim 1 wherein the column is tapered upwardly, both inside and out, with an outside draft angle >1 degree and <5 degrees, and an inside draft angle >0 degrees and <5 degrees. 5. The substructure of claim 4 wherein the outside draft angle is greater than the inside draft angle. 6. The substructure of claim 1 wherein the substructure is comprised of elastomeric material having compression modulus of between 0.5 and 0.9 and a Shore A durometer of 40-50. 7. The substructure of claim 6, wherein the compression modulus is about 0.69 and the Shore A durometer is about 44. 8. A resilient substructure, the substructure comprising: a resilient column; a central void in the column, the void opening at a bottom of the column; the column having a column wall, the column wall surrounding the central void from the top of the void to the bottom of the column; wherein the column wall is tapered upwardly, both inside and out, with an outside draft angle >1 degree and <5 degrees, and an inside draft angle >0 degrees and <5 degrees. 9. A resilient substructure, the substructure comprising a plurality of resilient columns, each column having a frusto-conical column wall and a central void, having an opening at a column bottom; with the frusto-conical column having its smaller diameter end at the column bottom, such that the column is relatively more compressible and collapsible in a lower zone than in an upper zone. 10. The substructure of claim 9 further comprising a vertical stiffening rib connecting an upper zone of two columns. 11. The substructure of claim 10, wherein the stiffening rib increases in thickness at heights above a rib bottom. 12. The substructure of claim 9 wherein the column has an outside draft angle >1 degree and <5 degrees, and an inside draft angle >0 degrees and <5 degrees. 13. The substructure of claim 12 wherein the outside draft angle is greater than the inside draft angle. 14. The substructure of claim 8 wherein the outside draft angle is greater than the inside draft angle.