| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable delivery of a bobbin case while taking appropriate measures against malfunctions during a bobbin-changing operation, or to enable reliable delivery of a bobbin case. <P>SOLUTION: When a bobbin-holding device is to deliver a bobbin case held thereby to a bobbin-retaining part at a predetermined bobbin-changing position in a bobbin stock part, if detection means detects that a bobbin is retained by the bobbin-retaining part at the predetermined bobbin-changing position, a transfer mechanism is controlled to stop transferring the bobbin-holding device to the bobbin stock part. On the other hand, when the bobbin-holding device is to be transferred to the bobbin-retaining part at the predetermined bobbin-changing position in the bobbin stock part to take the bobbin case, if the detection means detects that the bobbin is not retained by the bobbin-retaining part at the predetermined bobbin-changing position, the transfer mechanism is controlled to stop transferring the bobbin-holding device to the bobbin stock part. <P>COPYRIGHT: (C)2012,JPO&INPIT |
