Patent ID: 9556546
Date: 2017-01-31
CPC Classifications: D05B,D05C

Claim:
1. A sewing machine comprising: a needle bar to which a sewing needle is attached; a needle bar up-and-down motion mechanism moving the needle bar up and down; a sewing machine motor configured to generate drive power to drive the needle bar up-and-down motion mechanism so that the needle bar is moved up and down; and a cutting unit including: a cutting needle having a distal end formed with a blade; a cutting needle up-and-down motion mechanism having a first motor which is separate from the sewing machine motor and which is configured to generate drive power to move the cutting needle up and down independently of the needle bar up-and-down motion mechanism, so that a cut is formed by the blade as a result of the up-and-down motion of the cutting needle while the cutting needle is held in a manner such that an extending direction of the cutting needle corresponds with an extending direction of the needle bar; and a cutting needle rotating mechanism configured to rotate the cutting needle about a central axis line of the cutting needle directed to the extending direction of the needle bar and the cutting needle.