Patent ID: 9016093
Filing Date: 2015-04-28
Classification: C03B

Abstract:
1. A pulling roll for drawing glass sheet in a down-draw process, the pulling roll comprising: a shaft member; and a compliant cover assembly positioned on the shaft member, the compliant cover assembly comprising at least one traction disk positioned on the shaft member, the at least one traction disk comprising: an annular hub; and a plurality of spring elements integrally formed with the annular hub, the plurality of spring elements projecting outward from the annular hub such that an end of each spring element farthest from the annular hub is positioned radially outward from a base of each spring element and is circumferentially offset relative to the base of each spring element such that an offset angle A, measured from a line extending radially outward from a central axis through the base of each spring element relative to a line extending radially outward from the central axis through an end of each spring element, is at least 25 degrees, each of the plurality of spring elements having a radial spring constant in a range from about 2 lbf/mm to about 2000 lbf/mm wherein, when the compliant cover assembly is engaged with a planar surface of the glass sheet, at least a portion of the plurality of spring elements deflect radially inward, towards a center of the annular hub, thereby preventing damage to the glass sheet.