公开(公告)号：US20210127783A1

公开(公告)日：2021-05-06

申请号：US17094978

申请日：2020-11-11

Applicant: Worcester Polytechnic Institute

Inventor： Christopher A. Brown ,  Tristin J. Carlton ,  Eric Motler ,  Douglas Rives ,  Austin Lindner ,  Joshua M. Herlands ,  Jessica K.Y. Chen ,  Lorenzo M. Dube ,  James J. Muller ,  Pedro D. Oporto ,  Olivia G. Steen ,  Andrew R. Vickery

IPC: A43B13/18 ,  A43B13/20 ,  A43B5/02 ,  A43B13/12 ,  A43B13/22 ,  A43B13/14

Abstract: A protective headgear device, or helmet, protects against head injuries such as concussions and CTE by imposing a network of constant force members (CFMs) between an outer impact shell and an inner fitted capsule engaging the skull/head surface. CFMs exhibit a force absorbing behavior that differs from conventional linear spring behavior that impose a counterforce proportional to the displaced distance. CFMs occupy a compact void between the outer impact shell and the inner fitted capsule by component miniaturization and tethers that redirect forces within the void. An absence of conventional foam and straps increases accommodation for the CFMs and connection tethers/attachments. The CFMs exhibit a substantially constant force that avoids a sharp impactful response associated with head injuries.