Needle-thread supporting structure of cylindrical-bed sewing machine, interlocks clamping element and retainer arranged along the needle, when element is moved from one movement zone to another such that edge of thread is released

摘要

The structure has clamping element and needle-thread retainer which are arranged along the vertical-motion route of sewing needle (104). A movement element (60) positioned along the downward direction of needle, interlocks the clamping element and retainer, when the clamping element is moved from one movement zone to another, such that edge of needle thread is released.