Thread winding mechanism for a sewing machine
    1.
    发明授权
    Thread winding mechanism for a sewing machine 失效
    缝纫机的卷线机构

    公开(公告)号:US4091755A

    公开(公告)日:1978-05-30

    申请号:US740754

    申请日:1976-11-10

    IPC分类号: D05B59/00 D05B69/34 B65H54/18

    CPC分类号: D05B59/00

    摘要: A thread winding mechanism for a sewing machine head includes a main drive shaft for operating the sewing components and which is rotatably mounted within the head of the machine, a flywheel rotatably mounted on the drive shaft, a clutch for connecting and disconnecting the flywheel from the drive shaft, and a motor for driving the flywheel. A thread winding shaft is formed integrally with and extends axially outward from one end of the flywheel to the exterior of the head and a clutch operating handwheel mounted on and rotatable with the flywheel and which likewise extends outside the head can be shifted axially between an inward position wherein the flywheel is disconnected from the drive shaft and the thread winding shaft is exposed, and an outward position wherein the flywheel is connected to the drive shaft and the thread winding shaft is concealed within the handwheel.

    摘要翻译: 缝纫机头的线缠绕机构包括用于操作缝纫部件的主驱动轴,其可旋转地安装在机器的头部内,可旋转地安装在驱动轴上的飞轮,用于将飞轮与 驱动轴和用于驱动飞轮的马达。 螺纹卷绕轴与飞轮的一端一体地形成并且从轴向外延伸到头部的外部,并且安装在飞轮上并与飞轮一起旋转的离合器操作手轮可以在向内 其中飞轮与驱动轴断开并且螺纹卷绕轴被暴露,以及飞轮连接到驱动轴并且螺纹卷绕轴被隐藏在手轮内的向外位置。

    Extension table for sewing machines
    2.
    发明授权
    Extension table for sewing machines 失效
    缝纫机扩展台

    公开(公告)号:US4058072A

    公开(公告)日:1977-11-15

    申请号:US742102

    申请日:1976-11-16

    IPC分类号: D05B77/00 D05B73/10

    CPC分类号: D05B77/00

    摘要: An extension table for attachment to a sewing machine head of the portable type for enlarging the somewhat limited working area provided by flat upper surface of the bed in which the bobbin mechanism is housed under the needle and presser foot wherein the table is pivotally mounted on a support structure associated with the machine in such manner as to enable it to be shifted between a vertical position along one side of the machine for storage with the latter within a case, and a horizontal working position co-planar with the upper surface of the bed. The table has an elongated L-shaped configuration and is mounted on the supporting structure in such manner that when in its horizontal working position the short and long sides thereof respectively lie adjacent the end and side walls of the machine bed.

    Pattern indicator mechanism for a sewing machine
    3.
    发明授权
    Pattern indicator mechanism for a sewing machine 失效
    缝纫机图案指示机构

    公开(公告)号:US4064817A

    公开(公告)日:1977-12-27

    申请号:US736412

    申请日:1976-10-28

    IPC分类号: D05B3/02 D05B19/00 D05B27/22

    CPC分类号: D05B19/00

    摘要: A pattern indicator mechanism for a sewing machine includes a pattern selector knob rotatably mounted on the machine and which is operatively connected to a pattern selector cam mechanism, and a pattern indicator plate having a plurality of patterns illustrated thereon also operatively connected to the pattern selector cam mechanism for indicating a pattern selected by the pattern selector knob. Also included is a feed length indicator plate operatively connected to the pattern selector cam mechanism which automatically indicates a feed length corresponding to the pattern chosen by the selector knob.

    摘要翻译: 用于缝纫机的图案指示机构包括可旋转地安装在机器上并且可操作地连接到图案选择器凸轮机构的图案选择器旋钮,并且图案指示板具有图示的多个图案,其上还可操作地连接到图案选择器凸轮 用于指示由图案选择器旋钮选择的图案的机构。 还包括可操作地连接到图案选择器凸轮机构的进给长度指示板,其自动指示对应于由选择器旋钮选择的图案的进给长度。