Shirring attachment for sewing machines
    1.
    发明授权
    Shirring attachment for sewing machines 失效
    缝纫机附件

    公开(公告)号:US3608507A

    公开(公告)日:1971-09-28

    申请号:US3608507D

    申请日:1969-06-03

    IPC分类号: D05B35/08

    摘要: This disclosure relates to a shirring attachment for sewing machines equipped with differential feeding mechanisms, and includes a bracket pivotally carrying an arm which in turn carries a shirring blade, the arm and bracket having cooperative abutment means for locating the arm in operative and inoperative positions thereof, and biasing means for positively though releasably maintaining the abutment means in contacting engagement in both positions of the arm. The shirring blade is pivotally journaled to the arm for rotation of about a horizontal aXis, and cam and cam follower means are provided for automatically pivoting the shirring blade to an inoperative position upon the pivoting movement of the arm to its inoperative position.