CPC D05B 1/06 (2013.01) [D05B 57/04 (2013.01)] | 8 Claims |
1. A sewing device comprising a needle and a looper, the sewing device comprising:
a rotation shaft that rotates the looper: and
a set bolt that has a conical distal end and positions the looper in an axial direction relative to the rotation shaft from a radial direction of the rotation shaft, wherein
the looper includes a through screw hole into which the set bolt is screwed,
the rotation shaft includes a groove recessed from a peripheral surface of the rotation shaft, and
the groove includes an inclined surface that the conical distal end of the set bolt contacts.
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