Abstract: A sewing machine needle free from combined troubles of stitch skipping and fabric yarn breakage, irrespective of high-speed and multifunction sewing machines and diversified materials being used. The sewing machine needle includes a shank, a blade connected to the shank, a needle point formed at an extremity of the blade, a needle eye formed in the vicinity of the needle point, and a long groove extending from the needle eye along the blade. The blade is provided at a portion thereof where the scarf is formed with a crank in such a manner that a side of the portion is outwardly protruded in a direction opposite from the scarf with respect to a central axis of the needle. An end of the needle eye contiguous to the scarf is protruded outward by a predetermined height from a contour of the blade.

Abstract: A sewing machine needle capable of preventing stitch skipping and fabric yarn breakage, irrespective of high-speed and multifunction sewing machines and diversified materials being used. Over a predetermined length from an edge, closer to a needle point, of a needle eye toward the needle point, a blade has a straight profile extending parallel to a longitudinal axis of the needle as viewed from a side of the needle in a direction orthogonal to a direction in which the needle eye extends. Over a predetermined length from the straight profile portion toward the needle point, the profile of the blade is a flat cross-section in which the thickness thereof in the direction in which the needle eye extends is larger than the width thereof in the direction orthogonal to the direction in which the needle eye extends. In a needle point portion following the flat cross-section portion and extending to the needle point, the blade has a sectional shape of a perfect circle.

Abstract: A sewing machine needle capable of preventing stitch skipping and fabric yarn breakage, irrespective of high-speed and multifunction sewing machines and diversified materials being used. Over a predetermined length from an edge, closer to a needle point, of a needle eye toward the needle point, a blade has a straight profile extending parallel to a longitudinal axis of the needle as viewed from a side of the needle in a direction orthogonal to a direction in which the needle eye extends. Over a predetermined length from the straight profile portion toward the needle point, the profile of the blade is a flat cross-section in which the thickness thereof in the direction in which the needle eye extends is larger than the width thereof in the direction orthogonal to the direction in which the needle eye extends. In a needle point portion following the flat cross-section portion and extending to the needle point, the blade has a sectional shape of a perfect circle.

Abstract: A sewing machine needle free from combined troubles of stitch skipping and fabric yarn breakage, irrespective of high-speed and multifunction sewing machines and diversified materials being used. The sewing machine needle includes a shank, a blade connected to the shank, a needle point formed at an extremity of the blade, a needle eye formed in the vicinity of the needle point, and a long groove extending from the needle eye along the blade. The blade is provided at a portion thereof where the scarf is formed with a crank in such a manner that a side of the portion is outwardly protruded in a direction opposite from the scarf with respect to a central axis of the needle. An end of the needle eye contiguous to the scarf is protruded outward by a predetermined height from a contour of the blade.