Overlock sewing machine with a threading mechanism for easily threading
a looper
    2.
    发明授权
    Overlock sewing machine with a threading mechanism for easily threading a looper 失效
    包缝机具有穿线机构,可轻松穿线

    公开(公告)号:US4977842A

    公开(公告)日:1990-12-18

    申请号:US357263

    申请日:1989-05-26

    IPC分类号: D05B57/06 D05B87/02

    CPC分类号: D05B57/06 D05B87/02

    摘要: This invention provides an overlock sewing machine with a threading mechanism that is both easier and more efficient to use. As shown in FIGS. 1 and 7, the overlock sewing machine has a vertically movable needle (6, 106), a looper carriage (18, 118) connected to a rotating shaft, and a looper (11, 111) on the end of the looper carriage. The looper extends laterally over the looper carriage and has a thread-receiving eye (11a, 111a). The looper and the needle cooperate to form a chain stitch. As shown in FIGS. 3 and 9, a thread-guiding member (25, 125) next to the looper pivots with the looper to guide a thread LT through the thread-receiving eye. A movable lever (30, 130) pivots with or relative to the looper. A thread-delivering member (39, 139) mounted on the movable lever that can be set in two positions: a first position corresponding to a first position of the thread-receiving eye, and a second position corresponding to the thread-guiding member. In the second position, the thread passes through the thread-guiding member.

    摘要翻译: 本发明提供了一种具有更容易和更有效使用的穿线机构的包缝机。 如图 如图1和图7所示,包缝机具有可垂直移动的针(6,106),连接到旋转轴的打环架(18,118)和在活套架托架的端部上的弯针(11,111)。 该弯针横向延伸穿过活套架托架并具有一个接线眼(11a,111a)。 活针和针合作形成链式针迹。 如图 如图3和图9所示,在弯针旁边的导丝构件(25,125)用弯针枢转以引导线LT穿过线接收眼。 活动杆(30,130)与弯针枢转或相对于弯针枢转。 安装在可动杆上的螺纹输送部件(39,139),该螺纹输送部件能够设置在与螺纹接收眼的第一位置对应的第一位置和与引导部件对应的第二位置的两个位置。 在第二位置,线穿过线引导构件。