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    Device on sewing machines for trimming material
    1.
    发明授权
    Device on sewing machines for trimming material 失效
    缝制机械设备

    公开(公告)号：US3691970A

    公开(公告)日：1972-09-19

    申请号：US3691970D

    申请日：1970-02-28

    Applicant: PFAFF AG G M

    Inventor： WENZ HERBERT

    IPC: D05B37/04 ,  D05B37/06

    CPC classification number: D05B37/04

    Abstract: Device on sewing machines for trimming edges of the material with a cutter that is mounted for swinging movement on a cutter support adapted to make evading movements and which has an edge disposed in a vertical plane, as well as an angular protecting bridge disposed horizontally above the edge where the cutter support is displaceably mounted in a vertical guide means of a support member arranged on a cutter rocking lever and which is adjustable in height and is held in a central position by means of springs.

    Abstract translation: 用于修剪材料边缘的装置，其具有用于在适于进行回避运动的切割器支撑件上摆动运动并且具有设置在垂直平面中的边缘的切割器，以及在水平方向上设置的角保护桥 边缘，其中刀具支撑件可移动地安装在布置在切割器摇摆杆上并且可调节高度并且通过弹簧保持在中心位置的支撑构件的垂直引导装置中。

    Machine for sewing on buttons
    2.
    发明授权
    Machine for sewing on buttons 失效
    机器用于按钮

    公开(公告)号：US3680506A

    公开(公告)日：1972-08-01

    申请号：US3680506D

    申请日：1970-07-29

    Applicant: PFAFF AG G M

    Inventor： ALBRECHT ERNST ,  HAGER WALTER

    IPC: D05B3/14

    CPC classification number: D05B3/14

    Abstract: Machine for sewing on buttons comprising a button clamp and a material carrier, both of which are connected with a common control device driven by the machine to effect horizontal movements, which operates by switching a transmission (23, 24, 27, 28, 29) to the transfer of the drive for the material carrier (45), that is connected with a second control device (56) driven by the machine.

    Abstract translation: 用于在包括按钮夹具和材料载体的按钮上缝制的机器，两者都与由机器驱动的通用控制装置连接以实现水平移动，其通过切换变速器（23,24,27,28,29） 与用于由机器驱动的第二控制装置（56）连接的材料载体（45）的驱动器的传送。

    Device for guiding the needle thread of sewing machines
    3.
    发明授权
    Device for guiding the needle thread of sewing machines 失效
    用于引导缝纫机针头的装置

    公开(公告)号：US3643613A

    公开(公告)日：1972-02-22

    申请号：US3643613D

    申请日：1968-08-09

    Applicant: PFAFF AG G M

    Inventor： SCHWEHM LOTHAR

    IPC: D05B51/00 ,  D05B83/00 ,  B65H59/12 ,  B65H63/00

    CPC classification number: D05B83/00 ,  D05B51/00

    Abstract: A device for guiding the needle thread of sewing machines including a lug having a thread guide eyelet mounted on the needle bar and a frame mounted on the stepper foot shaft, which frame has a crossbar that extends transversely proximate the path of the needle and is overlapped by the thread guide eyelet when the needle is in the lower position. This device serves to seize the excess thread between the needle eye and the thread carrier, thus facilitating the formation of the thread loops.

    Abstract translation: 一种用于引导缝纫机的针线的装置，包括具有安装在针杆上的导丝孔的凸耳和安装在步进脚轴上的框架，该框架具有横向于横向靠近针的路径延伸并且重叠的横梁 当针位于较低位置时，由导丝孔穿过。 该装置用于抓住针眼和线架之间的多余线，从而有助于形成线环。

    Sewing machine with upper feed
    4.
    发明授权
    Sewing machine with upper feed 失效
    缝纫机与上饲

    公开(公告)号：US3614934A

    公开(公告)日：1971-10-26

    申请号：US3614934D

    申请日：1968-08-21

    Applicant: PFAFF AG G M

    Inventor： WENZ HERBERT ,  BERG HEINRICH

    IPC: D05B27/04

    CPC classification number: D05B27/04

    Abstract: IN A SEWING MACHINE HAVING AN UPPER FEED DOG STRUCTURALLY COMBINED WITH THE PRESSER FOOT FOR BOTH HORIZONTAL AND VERTICAL OSCILLATING MOVEMENTS OF SAID DOG, AND A COMMON BIASING SPRING ARRANGED TO URGE BOTH THE PRESSER FOOT AND FEED DOG LIFT BARS INTO ENGAGEMENT OF THE PRESSER FOOT AND FEED DOG WITH THE WORK, AN AUXILIARY BIASING SPRING ACTING ON THE PRESSER FOOT BAR ONLY SERVES TO MAINTAIN THE SAME IN CONTINUOUS ENGAGEMENT WITH THE WORK, INDEPENDENTLY OF PRESSURE VARIATIONS ON THE WORK BY THE COMMON BIASING SPRING RESULTING FROM THE VERTICAL FEED DOG OSCILLATIONS.

    Thread cutting mechanism for lock-stitch sewing machines with oscillating looptaker
    5.
    发明授权
    Thread cutting mechanism for lock-stitch sewing machines with oscillating looptaker 失效
    用于摇摆式缝纫机的螺纹切割机械

    公开(公告)号：US3605664A

    公开(公告)日：1971-09-20

    申请号：US3605664D

    申请日：1969-09-24

    Applicant: PFAFF AG G M

    Inventor： HEDEGAARD KRISTEN

    IPC: D05B57/00 ,  D05B65/00 ,  D05B65/02

    CPC classification number: D05B65/00 ,  D05B57/00

    Abstract: THREAD CUTTING MECHANISM FOR A LOCKSTITCH SEWING MACHINE WITH OSCILLATING LOOPTACKER COMPRISES A CURVED THREAD CATCHER CARRYING A FLAT CUTTING KNIFE AND BEING MOUNTED FOR OSCILLATING MOVEMENT IN THE DIRECTION OF MOVEMENT OF THE LOOPTAKER. THE THREAD CATCHER IS OPERATED BY AN AUXILIARY SHAFT PARALLEL TO AND OPERABLY CONNECTED WITH THE LOOPTAKER ROCKSHAFT VIA A MULTIPLE MOTION-TRANSMITTING CAM MECHANISM DESIGNED TO EFFECT A TWO-STEP THREAD CATCHING AND CUTTING OPERATION DURING A LOOPTAKER OSCILLATING CYCLE BY FIRST OPERATING THE THREAD CATCHER AXIALLY TO A FAVORABLE POSITION FOR SEPARATING THE BOBBON THREAD AND THE WORK LIMB OF THE NEEDLE THREAD LOOP AND SUBSEQUENT CUTTING OF THE SEPARATED THREADS BY THE CUTTING KNIFE.

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