Patent ID: 8539696
Filing Date: 2013-09-24
Classification: A43B,F16F,Y10T

Abstract:
1. An impact-attenuation member comprising: a spring element defining a cavity, the spring element having dimensions in height, length and width directions, the height dimension extending from a top surface to a bottom surface, and having at least one of the top surface and the bottom surface adapted for mounting, the length dimension extending from a front end to a back end; and wherein the impact-attenuation member has a first stiffness in the height direction at the front end of the spring element and a second stiffness in the height direction at the back end of the spring element, the second stiffness being different than the first stiffness; and further comprising a tension element extending across the width dimension of the impact-attenuation member between a first engagement portion engaging the spring element and a second engagement portion engaging the spring element.