| 摘要 |
<p>The present invention relates to a bobbin case used in a sewing machine. In the present invention, provided is a bobbin case, which is manufactured in a metallic mold and is accordingly allowed to rotate at high speed with less noise and to finish working smoothly, thereby increasing work efficiency. The bobbin case installed in the sewing machine comprises a cylindrical case part which is a base for the bobbin case; a cover part which is formed on the upper part of the cylindrical case part and plays a role as a lid for the bobbin case; and a recessed part which is formed on one side of the cylindrical case part.</p> |
