Dual-purpose progressive stage load-distributing and absorbing system
A multi-purpose progressive stage load distributing and absorbing system that lies below a superstructure material that is exposed to percussive forces. The progressive stage load distributing and absorbing system is interposed between the superstructure material and a foundation. The system has a barrier layer that lies below the superstructure material and an underlayment infrastructure positioned below the barrier layer. Included in the underlayment infrastructure are hat-shaped absorbing members that have a relatively compliant region and one or more relatively stiff regions.
1 . A progressive load-distributing and absorbing system, the system lying below a flooring material that is exposed to percussive or point-applied forces, the system being interposed between the flooring material that overlies a barrier layer and a foundation, the system comprising:
one or more tiles, at least some of the tiles having
a plurality of multi-tier, hat-shaped absorbing members to reduce noise and vibration and offer a multi-stage, progressive response to the forces, at least some of the absorbing members having
a planar basal portion lying within an absorbing member, the basal portion extending uninterruptedly between opposing edge portions of a curvilinear wall associated with the absorbing member, all planar basal portions in a tile being of equal height before compression, the tile being devoid of absorbing members that have planar basal portions of unequal heights,
the curvilinear wall extending from the basal portion, the curvilinear wall having a compliant region proximate the basal portion, a protective region extending from the compliant region, and a shoulder between the compliant region and the protective region, the shoulder defining a transition region and communicating absorption and rebound forces between the protective and compliant regions to communicate a graduated change in resistance offered by the protective and compliant regions,
the compliant region providing a soft footfall with a wall thickness (t) and a draft angle (U) degrees before compression and having a relatively lower resistance to the percussive or point-applied forces,
the protective region having a relatively higher resistance to the percussive or point-applied forces with a wall thickness (T) and a draft angle (L) degrees before compression, thereby providing protection from injury sustained from a fall above the flooring material, where (T)>(t) and (L) is greater than (U),
wherein the protective region may deflect after the compliant region in response to the load, and
one or more of the tiles having a ceiling portion extending between absorbing members in a tile, the ceiling portion supporting and separating the absorbing members in a tile,
wherein the curvilinear walls return to their pre-impact configuration and strength non-destructively after the percussive or point-applied forces no longer impact the flooring material, the compliant region bouncing back before the protective region.
2 . The progressive stage load-distributing and absorbing system of claim 1 , wherein the barrier layer is selected from the group consisting of a ceramic tile, solid wood, a wood composite, a carpet, a carpet tile, sheet vinyl, a vinyl tile, a rigid vinyl tile, a rubber sheet, a rubber tile, a grating, an anti-slip metallic surface including a material selected from the group consisting of a rigid thermoplastic, a composite and a metal.
3 . The progressive stage load-distributing and absorbing system of claim 1 , wherein the foundation is selected from the group consisting of a concrete, a gravel, a metal and a hardwood.
4 . The progressive stage load-distributing and absorbing system of claim 1 , further including a means for securing positioned between (A) the barrier layer and a ceiling, or (B) the basal portion and the foundation or in a position that includes (A) and (B).
5 . The progressive stage load-distributing and absorbing system of claim 1 , wherein a compliant region has a footprint with a shape selected from the group consisting of a circle, an oval, an ellipse, a cloverleaf, a race-track, and other curved perimeters.
6 . The progressive stage load-distributing and absorbing system of claim 1 , wherein a protective region has a footprint with a shape selected from the group consisting of a circle, an oval, an ellipse, a cloverleaf, a race-track, and other curved perimeters.
7 . The progressive stage load-distributing and absorbing system of claim 1 , further including one or more tiles of underlayment infrastructures, wherein the barrier layer of a first tile extends from an edge thereof and overhangs at least some of the ceiling portions of an adjacent tile.
8 . The progressive stage load-distributing and absorbing system of claim 7 , wherein a group of tiles are conjoined, at least some of the absorbing members having a load-attenuation characteristic such that within the group, there is a user-determinable force attenuation property that may be uniform or varied within the group.
9 . The progressive stage load-distributing and absorbing system of claim 8 , wherein a group of conjoined tiles has an energy absorption characteristic that differs from another group of conjoined tiles, so that tiles that underlie a nursing station may present a softer footfall than a group of tiles that underlie a bed frame.
10 . The progressive stage load-distributing and absorbing system of claim 1 , wherein the ceiling portion between adjacent progressive stage absorbing members in a tile has a length that is greater than a base.
11 . The progressive stage load-distributing and absorbing system of claim 1 , wherein the flooring material includes:
a surface selected from the group consisting of a floor located in a senior living or elder care facility, a hospital or out-patient facility, a daycare floor; and flooring material in homes and residences.
12 . The progressive stage load-distributing and absorbing system of claim 1 , wherein a curvilinear wall has multiple tiers in the protective region.
13 . The progressive stage load-distributing and absorbing system of claim 1 , further including
a small radius feature between a compliant region and a base, and
a larger radius feature between a shoulder and a tier in the protective region, so that semi-solid material may flow in a thermoforming step more readily between a shoulder and a tier in the protective region than between a compliant region and a base, thereby creating a thinner wall in the compliant region than in the protective region.
14 . The progressive stage load-distributing and absorbing system of claim 1 , wherein the flooring material includes:
a material selected from the group consisting of a floor surface located in a senior living or elder care or daycare facility; a hospital or out-patient facility; a home or residence; and a marine environment, including boating decks and docks;
a sports-playing surface;
a walking/running track;
a golf playing surface;
a soccer, rugby, lacrosse, or football field;
a stairway;
a work mat;
a work platform;
an anti-fatigue mat;
an enhanced comfort mat;
a wall protection material;
a playground;
a military blast mat; and
a seat in a military vehicle that may detonate a land mine.
15 . The progressive stage load-distributing and absorbing system of claim 1 , wherein a curvilinear wall has multiple tiers in the compliant region.
16 . A method for making flooring material in an elder care facility safer by providing a progressive load-distributing and absorbing system that softens a fall thereupon, thereby lessening forces and consequences of impact, the system lying below the flooring material and a barrier layer that lies below the flooring material, the flooring material being exposed to percussive or point-applied forces occasioned by such influences as a falling patient, a rolling bed or a wheelchair, the system being interposed between the barrier layer and a foundation, the method comprising the steps of:
laying one or more tiles of multi-tier, hat-shaped absorbing members between the foundation and the flooring material,
the absorbing members having planar basal portions of equal height in a tile before compression, each tile being devoid of absorbing members with planar basal portions of unequal heights,
each planar basal portion extending uninterruptedly between opposing edge portions of a curvilinear wall within an absorbing member, the basal portion in one orientation being positioned adjacent to the foundation, or in another orientation being positioned adjacent to the barrier layer;
each curvilinear wall in an absorbing member extending from the basal portion, the curvilinear wall having a compliant region proximate the basal portion, a protective region extending from the compliant region, and a shoulder between the compliant region and the protective region, the shoulder defining a transition region between the protective and compliant regions to provide an area of difference between resistance offered by the protective and compliant regions,
forming the absorbing members so that the protective region has a wall thickness (T) with a draft angle before compression of (L) degrees and the compliant region has a wall thickness (t) with a draft angle of (U) degrees, such that (T)>(t) and (L)>(U);
enabling the compliant region to provide a soft footfall by the compliant region being provided with a relatively lower resistance to the percussive or point-applied forces;
enabling the protective region to provide relatively higher resistance in comparison to the resistance offered by the compliant region to the percussive or point-applied forces, thereby protecting from an injury sustained from a fall above the flooring material,
so that the protective region deflects after the compliant region in response to the load, and at least some curvilinear walls return to their pre-impact configuration and strength after the percussive or point-applied forces no longer impact the flooring material, the compliant region bouncing back before the protective region.