THREAD CATCHING AND SEVERING RING STRUCTURE

摘要

The thread catching and severing ring structure includes a ring element which is press fit onto a second ring element. The first ring element has a plurality of projections which overlie a groove on the second ring element. The projections and groove are sized so that a thread can be guided into the groove and thereafter into a gap between a land on the second ring element and a projection on the first ring element.