| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel structure for reducing the circumferential length of a cylinder bed part in the building of a cylinder bed type sewining machine from the sewing machine of a type with the hook shaft orthogonal to the lower shaft. SOLUTION: In the sewing machine which is provided with a bed part 2 comprising a body bed part 6 and a cylinder bed part 8, a thread cutting drive part 102, the hook shaft 26, a drive shaft 22 which is orthogonal to the hook shaft while driving the hook shaft, a gear device 24 which transmits driving forces to the hook shaft from the drive shaft, a hook 28 mounted at the tip of the hook shaft 26, a dynamic knife 120 for catching and cutting needle threads and a link element 50 with both ends 50a and 50b thereof linked to the thread cutting drive part and the dynamic knife and has at least the hook shaft 26, the gear device 24, the hook 28 and the dynamic knife 120 within the cylinder bed part 8, the intermediate part of the link element 50 is so arranged as to pass through spaces S1 and S2 between the hook 28 and the gear device 24. COPYRIGHT: (C)2004,JPO
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