Impact energy attenuation system
A new and novel impact energy attenuation material, impact energy attenuation module employing the material and a fit system for optimizing the performance thereof is provided. Non-linear energy attenuating material consisting of a plurality of loose particles is employed for impact energy dissipation. The loose particles are preferably spherical elastomeric balls. An impact energy attenuation module includes a container that holds the loose particles. The impact energy attenuation module can be provided in a wide range of sizes and shapes and the loose particles can be provided in different materials, sizes, density, compaction and hardness to suit with the application at hand. A matrix of impact energy attenuation module are provided about the surface of a shell to provide the required impact energy attenuation. The material, impact energy attenuation module and system of the present invention are well suited for protection of body parts and other cushioning and protection needs.
1. An impact energy attenuation module for attenuating the impact energy from an incoming impact force, comprising:
a base having a receiving surface;
an intermediate member having a top and a bottom side and an aperture therethrough; the intermediate member being attached to the base with the bottom side in communication with the receiving surface of the base;
a flexible bladder having a free end and a connection end; the connected end being routed through the aperture in the intermediate member and connected to the base;
a plurality of particles within the bladder; at least one of the plurality of particles being in communication with an incoming impact force via the flexible bladder;
the at least one of the plurality of particles being in communication with other ones of the plurality of particles within flexible bladder;
the incoming impact force being attenuated by the bladder, intermediate member and base.
2. The module of claim 1 , wherein the intermediate member is in the shape of a torus.
3. The module of claim 1 , wherein the device is configured and arranged to diffuse rotational off-axis impact energy imparted to the pad.
4. The module of claim 1 , wherein the intermediate member is made of a material selected from the group consisting of: molded foam, polystyrene and expanded polypropylene.
5. The module of claim 1 , wherein the base is made of a material selected from the group consisting of: plastic and polycarbonate.
6. The module of claim 1 , wherein the flexible bladder is made of an elastomeric material.