| 摘要 |
<p>The invention provides a full rotary hook wherein amount of a bobbin thread wound in a bobbin (4) is increased by making a circumferential portion (12a) between a thread separating portion (21) and a thread releasing portion (22) thinner than the remainder of the circumferential portion (12b) to increase an inner diameter of a bobbin case holder (3). Thereby, the inner diameter of the bobbin (4) housed in the bobbin case holder (3), and further the inner diameter of the cylindrical portion (12) housing the bobbin case (5) can be increased and consequently an outer diameter of a flange (8) of the bobbin (4) can be increased, thereby increasing the amount of the bobbin thread wound around a winding drum of the bobbin. <IMAGE></p> |
