| 摘要 |
PROBLEM TO BE SOLVED: To provide a sewing machine frame or the like which exhibits a high rigidity while its bed, column and arm are integrally molded of synthetic resin. SOLUTION: Three main parts of the sewing machine frame 1, i.e., the bed 8, the column 7 which is set up on the bed 8, and the arm 6 which is hung over the bed 8 from the column 7, are integrally molded of synthetic resin. In this case, the sewing machine frame 1 is provided with inside perimeter wall reinforcing ribs 70 for reinforcing its inside perimeter wall 51 facing the space 9 surrounded by its three main parts, and the inside perimeter reinforcing ribs 70 are arranged in an area from the part where the bed 8 and the column 7 are coupled up to the part where the arm 6 and the column 7 are coupled. COPYRIGHT: (C)2003,JPO
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