Bobbin case for rotary shuttles of sewing machines

摘要

The bobbin case (1) of a rotary shuttle of vertical axis of rotation for sewing machines with a thread cut-off device, especially for those with needle transport, is provided with an under-thread guide groove (13) which extends from the exit orifice (8) of the bobbin case (1) for the under-thread (5) essentially to the stitch hole (4a). <IMAGE>