Looper throw-out safety catch device
    1.
    发明授权
    Looper throw-out safety catch device 失效
    Looper扔出安全捕捉装置

    公开(公告)号:US5233935A

    公开(公告)日:1993-08-10

    申请号:US884069

    申请日:1992-05-15

    申请人: Frank F. Winter

    发明人: Frank F. Winter

    CPC分类号: D05B57/00 D05B83/00

    摘要: A looper throw-out device containing a latch for catching the release lever of the looper throw-out device when the release lever is left in the unlocked position. The latch is mounted on the inside portion of the sewing machine cover. If an operator fails to lock the release lever before sewing, the latch catches the unlocked release lever when the operator attempts to close the sewing machine cover.

    摘要翻译: 当释放杆处于未锁定位置时,该装置包括一个用于捕捉该弯针装置释放装置的释放杆的闩锁。 闩锁安装在缝纫机盖的内侧。 如果操作人员在缝制前无法锁定释放杆,则当操作员试图关闭缝纫机盖时,闩锁卡住解锁释放杆。

    Thread cutter mechanism for sewing machines
    4.
    发明授权
    Thread cutter mechanism for sewing machines 失效
    缝纫机螺纹切割机构

    公开(公告)号:US3935827A

    公开(公告)日:1976-02-03

    申请号:US490783

    申请日:1974-07-22

    申请人: Frank F. Winter

    发明人: Frank F. Winter

    摘要: This disclosure relates to a thread cutter mechanism for sewing machines wherein at the end of a stitching operation, a spreader member extends into the needle thread loop and expands the same transversely so that both the bobbin thread and the needle thread may be severed in a single operation. Cooperating cutter knives, mounted to swing arcuately, cooperate with the loop spreader to effect the necessary thread cutting. In addition, there is provided a bobbin thread pull-off member which serves to pull thread off of the bobbin prior to the severing of the bobbin thread by the cutter knives. The cutter knives, loop spreader and bobbin thread pull-off member are all actuated in an arcuate path by means of slide bars which are actuated by mechanism controlled in timed relation to the operation of the sewing machine.

    摘要翻译: 本公开涉及一种用于缝纫机的线切割机构,其中在缝合操作结束时,扩展器构件延伸到针线环中并横向膨胀,使得底线和针线可以单独切割 操作。 合作刀具,弧形摆动安装,配合环形吊具进行必要的螺纹切割。 此外,提供了一种底线引出构件,其用于在由切割刀切断底线之前将线从线轴拉出。 切割刀,环形吊具和底线牵引构件都通过滑动杆以弧形路径致动,滑动杆通过与缝纫机的操作定时关系来控制的机构致动。