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Sewing machine with a presser foot drivable in transverse direction by the needle bar
Sewing machine with a presser foot drivable in transverse direction by the needle bar
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机译:带有压脚的缝纫机,压脚可通过针杆横向驱动
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摘要
In a sewing machine with a needle bar executing transverse motions and with a pressing arrangement whose foot can be lowered onto the work piece laterally with regard to its central position when the needle bar executes lateral movements, the presser arrangement and its drive connection to the needle bar is executed so that a minimal moment of inertia is exerted on the needle bar when driving the pressure arrangement and so that the pressure foot always generates a load evenly spread over the pressed surface, independent of the width of its lateral movements. For this purpose the presser foot is movable in transverse direction relative to the other parts of the pressing arrangement and it is guided parallel to the work piece surface by a guiding arrangement. The transverse movement of the presser arrangement is taken from the transverse movement of the needle bar by a driving connection. The driving connection is formed by a driving linkage connected to the needle bar and by a catch connected to the presser foot.
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