| 摘要 |
The sewing needle has a slit (3) between the eye (2) and the side edge (5). A narrowed entry (4a) is formed at the slit (3), leading into the eye (2) and/or within the eye (2). The minimum diameter of the narrowed section (4a) is significantly smaller than the diameter of the eye (2) behind it, and is smaller than the thickness of the thread used. The slit (3) is near the leading end of the eye (2), at right angles to the longitudinal line of the needle. The leading wall of the slit, on the longitudinal line of the needle, has a forward component at the narrowest point of the slit to the eye. The eye (2), slit (3) and the needle edge (5) towards the rear end (7) of the needle form a leg of an elastic material. The peripheral zone of the slit edge forms an acute angle with the opposite slit edge or eye edge, with a component towards the rear end (7) of the needle. The eye (2) is aligned along the needle at the narrowed point. The side edge of the eye (2) away from the slit (3) runs along the eye until the narrowest point, on a straight line without kinks, and over the narrowest point along the longitudinal line of the needle. The slit (3) has a conical structure to the rear, at least in a section, towards the eye (2) and/or the narrow point of the eye (2). The conical shape of the slit (3) is from the needle side edge (5) to the narrowest point or the eye (2) from the widest part of the leading section to the narrowest point. The narrow point (4a) opens out directly from the narrowest section to the eye (2) or the trailing zone of the eye (2). The slit (3) is at the inner edge (5) of the curved needle. |
