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公开(公告)号：WO2021096908A1
公开(公告)日：2021-05-20
申请号：PCT/US2020/059936
申请日：2020-11-11
Applicant: WORCESTER POLYTECHNIC INSTITUTE
Inventor： BROWN, Christopher A. , CARLTON, Tristan J. , MOTLER, Eric , RIVES, Douglas , LINDNER, Austin , HERLANDS, Joshua M. , CHEN, Jessica K.Y. , DUBE, Lorenzo M. , MULLER, James J. , OPORTO, Pedro D. , STEEN, Olivia G. , VICKERY, Andrew R.
IPC: A42B3/06
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.
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公开(公告)号：WO2020072854A1
公开(公告)日：2020-04-09
申请号：PCT/US2019/054617
申请日：2019-10-04
Applicant: WORCESTER POLYTECHNIC INSTITUTE
Inventor： BROWN, Christopher A. , MULLER, James J. , PARKER, Winton , GRANT, Allysa , CARLTON, Tristin J. , WORKMAN, Nicholas , DOYLE, Michael , SHELSKY, Jessica , CHEU, Jessica K. Y. , DUBE, Lorenzo M. , OPORTO, Pedro D. , STEEN, Olivia G. , VICKERY, Andrew R.
Abstract: A force absorbing device for a footwear appliance includes a shoe upper and a shoe sole having a planar sole surface, such that forces between the shoe upper and planar sole surface in ground contact are absorbed by force mitigation structures disposed in the shoe sole. A footwear article includes a split-sole system that redefines a shoe sole as coplanar surfaces having a force mitigating interface for receiving sudden forces and effectively mitigating these forces by storing kinetic energy and releasing it over time. An elastic field in the force mitigation structure is defined by a resilient material adapted to deform in response to the received force. Frictional engagement between the upper and lower sole may also be augmented by surface characteristics such as dimples, voids and lubricants, in addition to interference engagement with an elastic field.
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公开(公告)号：WO2020056097A1
公开(公告)日：2020-03-19
申请号：PCT/US2019/050758
申请日：2019-09-12
Applicant: WORCESTER POLYTECHNIC INSTITUTE
Inventor： BROWN, Christopher A. , MULLER, James J. , DUNN, Julia A. , ALVAREZ, Alexander R. , MUDGE, Kyle R. , NAOUM, Rachael
Abstract: A force dissipating device in a footwear appliance includes an actuator responsive to a displacement force from a shoe sole surface, and an elastic field of resilient, compressible material. The elastic field is elongated in a direction aligned with the displacement force, and an inclined surface is attached to the actuator and disposed against the elastic field. The actuator is adapted for movement parallel to the elastic field, while the inclined surface is oriented to compress the elastic field in a direction defined by the inclined surface. The inclined surface is oriented at an angle to compress the elastic field in a direction substantially perpendicular to vertical actuator displacement, thus providing a constant region of opposed, compressive force that is generally constant, rather than increasing with displacement distance.
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公开(公告)号：EP3860383A1
公开(公告)日：2021-08-11
申请号：EP19868549.7
申请日：2019-10-04
Applicant: Worcester Polytechnic Institute
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