Patent ID: 9416839
Filing Date: 2016-08-16
CPC Classification: F16F,Y10T

Claim Text:
1. A NPR (negative Poisson's ratio) component, comprising: a tubular structure defining an axis, a length and a cross section; the structure being composed of a plurality of nested, double-V unit cells, each unit cell comprising a pair of side points A and B defining a width, a first pair of tensile members interconnecting points A and B and intersecting at a point C forming a first V shape, a second pair of stuffer members interconnecting points A and B and intersecting at a point D forming a second V shape; the unit cells being connected in a first direction with the point B of one cell being connected to point A of an adjoining cell, and so on, until completing a continuous band; the unit cells being further connected in a second direction with the point D of one cell being connected to point C of an adjoining cell; and wherein: the bands are stacked radially outwardly from the axis to form a bushing; or the bands are stacked lengthwise along the structure to form a joust bumper.