Cornerbead structure

摘要

A cornerbead for installation at a drywall outside corner includes a substrate forming a nose and first and second elongated flanges. Each flange has an inner edge and an opposing outer edge and joins an opposing side of the nose at the flange's respective inner edge. Each flange is formed with discrete holes. There is pressure sensitive adhesive on the interior surface of at least the first flange.

主权项

1. A cornerbead for installation at a drywall outside corner, the cornerbead comprising:
a substrate forming an elongate nose and first and second elongated flanges, wherein each flange has an inner end and an opposing outer edge and joins an opposing side of the nose at the flange's respective inner end, and each flange has an exterior surface and an interior surface and is formed with a plurality of discrete holes arranged in at least one column arranged generally parallel to said nose, where said discrete holes are spaced from the outer edge of the flange and penetrate from the exterior surface of the flange to the interior surface thereof, where at least one of the discrete holes is spaced apart from the nose by a distance of at least half the width of the flange that it penetrates, pressure sensitive adhesive on the interior surface of at least the first flange, wherein the pressure sensitive adhesive does not block the holes formed in the first flange; and at least one rib disposed on the interior surface, each at least one rib positioned between two adjacent holes in a column, where the rib protrudes from the interior surface.