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    • 43. 发明授权
    • Sewing machine needles
    • 缝纫机针
    • US4128067A
    • 1978-12-05
    • US784000
    • 1977-04-04
    • Josef Zocher
    • Josef Zocher
    • D05B85/02B21G1/00B21G1/04D05B85/00
    • B21G1/04D05B85/00
    • A sewing machine needle is disclosed in which the needle blade including the long groove and the eye portion with a thin eye-accommodating web is cold formed in one finless flow pressing operation. Regardless of the diameter of the needle blade a uniform relation thereof with the needle orienting flat on the needle butt is achieved by lateral displacement of the needle blade axis relatively to the axis of the needle butt. In addition, the side flanges of the long groove, particularly in the eye portion are flared to facilitate threading.
    • 公开了一种缝纫机针,其中包括长槽的针叶和具有薄的眼睛容纳腹板的眼部被冷却成一个无限流动按压操作。 无论针刀的直径如何,通过相对于针踵的轴线的针叶片轴线的横向位移来实现与针踵上的取向平坦的针的均匀关系。 此外,长槽的侧凸缘,特别是在眼部中的侧凸缘被张开以便于穿线。