| 摘要 |
A sewing machine, wherein holding members (46) and (48) for holding a thread hung on a needle thread take- up (17) to be swung at a position on the downstream side of the needle thread take-up and on the upstream side of the sewing needle fitted to a needle bar are provided in a sewing machine head. During the rest of operation of the sewing machine head, the movement of the thread on the downstream side of the needle thread take-up is stopped irrespective of whether the needle thread take-up is swung or not since the thread (T) is held by the holding members. The tip of the thread hung on the needle thread take-up is passed through the pin hole of the sewing needle fitted to the needle bar. When the needle thread take-up is swung, the hung thread is tensed or loosened according to the swing movement. However, since the thread is held by the holding members on the downstream side of the needle thread take-up in the sewing machine head in the rest of operation, the thread passed through the pin hole is not extracted from the pin hole even if the needle thread take-up is swung. By such a simple structure, the thread can be prevented from being extracted from the pin hole.
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