Helmet rotation damping with negative torque
View Patent ↗The present invention is a helmet system that reduces concussions by damping rotational force transmitted to a helmet user. The helmet has an helmet shell that moves independently from an internal body worn by the user. At least one magnetic force emitter on the helmet shell's interior directs at least one interior-facing magnetic flux axially at the internal body. At least one magnetic force emitter attached to the internal body directs at least one exterior-facing magnetic flux at the at least one interior-facing magnetic flux. In a resting state magnetic flux interactions are limited. When a tangential impact rotates the exterior shell, the at least one interior-facing magnetic flux approaches to the side of the at least one exterior-facing magnetic flux, inducing negative torque of the internal body in a variety of ways. Rotational momentum is diffused in a variety of ways. The exterior shell is returned to the resting state in a variety of ways. A sensor may be contained on the internal body to detect magnetic flux acceleration of the exterior shell, and may store or transmit data, and may trigger an airbag around the user's neck, or reduce helmet shell motion, or return the helmet shell to the resting state.
1 . A magnetic motion detection system comprising:
a sensor arranged in an internal body worn by a person's head, the internal body positioned inside of a helmet shell;
the helmet shell configuring to emit a magnetic flux and capable of rotating independently of the internal body;
wherein the helmet shell is configured to experience tangential impacts, resulting in a rotational and tangential acceleration of the helmet shell independent of the internal body;
the sensor configured to detect a plurality of acceleration data of the magnetic flux resulting from the rotational and tangential acceleration;
the plurality of acceleration data enables a calculation of the rotational and tangential acceleration.
2 . The magnetic motion detection system of claim 1 , wherein the controller performs at least one of the following actions: storing the acceleration data of the magnetic flux, and transmitting the acceleration data of the magnetic flux.
3 . The magnetic motion detection system of claim 1 , wherein the controller generates a triggering signal for an airbag if the acceleration data of the magnetic flux has a value equal to and greater than a predetermined threshold value.
4 . The system of claim 3 , wherein the triggering signal for the airbag causes an airbag inflator to rapidly inflate the airbag around the person's neck by producing an inflator gas directed into the airbag to inflate it; after predetermined delay opening a valve to exhaust gases.
5 . The magnetic motion detection system of claim 1 , wherein the controller contains a logic element that, in response to the acceleration rate data of the magnetic flux, is adapted to trigger a rapid conformational change of at least one adjustment mechanism comprising a polymer structure with a spring-like action.
6 . The system of claim 5 , wherein the adjustment mechanism is coupled to at least one of the following: the helmet shell, in which the conformational change reduces the helmet's motion caused by the impact; and the internal body, in which the conformational change reduces the internal body's motion caused by the impact.