Biomechanics aware headgear

Abstract

Protective gear includes an outer shell layer connected to a middle shell layer through an outer energy and impact transformer layer. The middle shell layer is connected to an inner shell layer through an inner energy and impact transformer layer. The outer and inner energy and impact transformer layers flexibly connect the shell layers to absorb impact forces, rotational forces, shear forces, etc., and allow the various shell layers to move and slide relative to the other shell layers. The outer and inner energy and impact transformer layers may be constructed using gels, fluids, electro-rheological elements, magneto-rheological elements, etc. The protective gear may be formed as helmets or body protection for various activities and protect users from not only impact and penetrative forces, but rotational and shear forces as well.

What is claimed is: 
     
         1 . A helmet comprising:
 an outer protective shell;   an inner protective shell connected to the outer protective shell through a first energy transformer layer;
 the first energy transformer layer including a plurality of elastomeric structures residing between the outer protective shell and the inner protective shell, the first energy transformer layer associated with a shear mechanism, 
 wherein the shear mechanism is operable to absorb energy from forces imparted onto the outer protective shell and allows the outer protective shell to slide relative to the inner protective shell; and 
   a liner layer connected to the inner protective shell, the liner layer configured to reside between the inner protective shell and a human head.   
     
     
         2 . The helmet of  claim 1 , wherein the elastomeric structures comprise a plurality of elastomeric trusses. 
     
     
         3 . The helmet of  claim 1 , wherein the elastomeric structures comprise a first absorptive/dissipative material. 
     
     
         4 . The helmet of  claim 1 , wherein the elastomeric structures comprise a plurality of structures are maintained in a comb structure. 
     
     
         5 . The helmet of  claim 1 , wherein the elastomeric structures comprise a plurality of connective structures connecting the outer protective shell to the inner protective shell. 
     
     
         6 . The helmet of  claim 1 , wherein the elastomeric structures comprise a plurality of elastic bands connecting the outer protective shell from the inner protective shell. 
     
     
         7 . The helmet of  claim 1 , wherein the helmet comprises a plurality of foam elements between the outer protective shell and the inner protective shell, the plurality of foam elements including a low friction side. 
     
     
         8 . The helmet of  claim 1 , wherein an accordion element connects the outer protective shell to the inner protective shell. 
     
     
         9 . Headgear comprising:
 an outer protective shell;   an inner protective shell connected to the outer protective shell through a first energy transformer layer, wherein the inner protective shell is added to the headgear;
 the first energy transformer layer including a plurality of elastomeric structures residing between the outer protective shell and the inner protective shell, the first energy transformer layer associated with a shear mechanism, 
 wherein the shear mechanism is operable to absorb energy from forces imparted onto the outer protective shell and allows the outer protective shell to slide relative to the inner protective shell; and 
   a liner layer connected to the inner protective shell, the liner layer configured to reside between the inner protective shell and a human head.   
     
     
         10 . The headgear of  claim 9 , wherein the elastomeric structures comprise a plurality of elastomeric trusses. 
     
     
         11 . The headgear of  claim 9 , wherein the elastomeric structures comprise a first absorptive/dissipative material. 
     
     
         12 . The headgear of  claim 9 , wherein the elastomeric structures comprise a plurality of structures are maintained in a comb structure. 
     
     
         13 . The headgear of  claim 9 , wherein the elastomeric structures comprise a plurality of connective structures connecting the outer protective shell to the inner protective shell. 
     
     
         14 . The headgear of  claim 9 , wherein the elastomeric structures comprise a plurality of elastic bands connecting the outer protective shell from the inner protective shell. 
     
     
         15 . The headgear of  claim 9 , wherein the headgear comprises a plurality of foam elements between the outer protective shell and the inner protective shell, the plurality of foam elements including a low friction side. 
     
     
         16 . The headgear of  claim 9 , wherein an accordion element connects the outer protective shell to the inner protective shell. 
     
     
         17 . A method for constructing a helmet, the method comprising:
 attaching a first energy transformer layer and an inner protective shell to an outer protective shell, the first energy transformer layer including a plurality of elastomeric structures residing between the outer protective shell and the inner protective shell, the first energy transformer layer associated with a shear mechanism,
 wherein the shear mechanism is operable to absorb energy from forces imparted onto the outer protective shell and allows the outer protective shell to slide relative to the inner protective shell; and 
   attaching a liner layer to the inner protective shell, the liner the liner layer configured to reside between the inner protective shell and a human head.   
     
     
         18 . The method of  claim 17 , wherein the elastomeric structures comprise a plurality of elastomeric trusses. 
     
     
         19 . The method of  claim 17 , wherein the helmet comprises a plurality of foam elements between the outer protective shell and the inner protective shell, the plurality of foam elements including a low friction side. 
     
     
         20 . The method of  claim 17 , wherein an accordion element connects the outer protective shell to the inner protective shell.