Patent ID: 6332417
Filing Date: 2001-12-25
Classification: D05B

Abstract:
A sewing machine needle for high-speed operation, comprising(a) a central longitudinal axis;(b) a blade extending at least partially coaxially with said axis and terminating in a point;(c) a sole eye passing through said blade transversely to the axis and having an opening direction; said eye having opposite openings on opposite sides of said blade; each opening having opposite first and second sides spaced from one another in a direction parallel to said axis; said blade having a height measured perpendicularly to said axis; said height increasing from said point to a first blade location situated externally of said eye at least at one of said openings and adjoining said first side of said one opening; said height further increasing from said first blade location to a second blade location situated externally of said eye at said one opening and adjoining said second side of said one opening;(d) two mutually spaced walls forming part of said blade and having respective inner faces bounding said eye; and(e) an indentation provided in said blade in a region of said at least one of said openings; said indentation dropping below a height level of said first and second blade locations; said indentation reducing a height of at least one part of said walls as measured from said axis.