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(11) | EP 0 887 452 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Buttonhole darning sewing machine |
| (57) There is provided needle drop control means which, when a sewing machine stop signal
is generated, sets a needle 9 stop position on the more right side than a cloth cutting
knife 16 with respect to an operator. The needle drop control means, when the formation
of buttonhole darning stitches is completed, sets the needle 9 stop position on the
more right side than a cloth cutting knife 16 with respect to the operator. The needle
drop control means includes electrical drive means for moving a needle 9 to a given
position existing in the right and left direction, and a control circuit for giving
a drive instruction to the electrical drive means to stop the needle 9 at the given
position, that is, the given needle stop position. |