Patent ID: 8900392
Filing Date: 2014-12-02
Classification: B29B,B29C,Y10T

Abstract:
1. A method of directing bias tows of a fabric to be wrapped around a form to create a fabric preform, the fabric including at least a first set of bias tows that are generally parallel with one another and a second set of bias tows that are generally parallel with one another but that are not parallel with the first set of bias tows, the method comprising: attaching an edge strip to ends of the first set of bias tows at a first lateral edge of the fabric relative to a feed direction of the fabric onto the form; moving the edge strip to direct the first set of bias tows; and wrapping the fabric around the form by rotating the fabric and form relative to one another about the central axis of the form to create the fabric preform; wherein, by moving the edge strip to direct the first set of bias tows, a shear is induced in the fabric so as to facilitate formation of a feature on the fabric preform, and wherein the step of moving the edge strip is separate from the step of wrapping the fabric.