| 摘要 |
PROBLEM TO BE SOLVED: To drive a sewing frame with high precision while preventing its deflection deformation, improving sewing precision, high-speed follow-up property and durability, and minimizing the increases in the number of part items, cost, and motor noise, or the like. SOLUTION: Ball screw drive mechanisms 20 each obtained by screwing a nut, which has a coupling member coupled with the sewing frame 10, into a ball screw rotated by a motor and slide guide mechanisms 30 each obtained by slidably coupling a slider, which has a coupling member coupled with the sewing frame 10, with a guide rail are arranged in turn and in parallel at positions nearly uniformly dividing one side of the sewing frame 10.
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