Sewing machine

A sewing machine that forms a decorative stitch on an upper surface of a fabric, the sewing machine comprising:

• a presser foot which is adjacent to a sewing needle moving up and down and which holds down a fabric on a throat plate;
• a presser holder which supports the presser foot;
• a rotatable spreader having a thread hole through which sewing thread vertically passes;
• a spreader drive mechanism which drives a rotation of the spreader;
• a reciprocating motion conversion mechanism which is positioned above the throat plate and converts a rotation of an upper shaft into a linear reciprocating motion in a longitudinal direction;
• and a link mechanism which transmits a reciprocating motion produced by the reciprocating motion conversion mechanism to the spreader drive mechanism,
• wherein the spreader and the spreader drive mechanism are both provided in the presser foot, and the link mechanism is provided in the presser holder,
• wherein the presser foot includes a pivot shaft which is positioned behind the sewing needle and vertically extends,
• wherein the spreader includes a main body supported by the pivot shaft, a cam groove which is formed in the main body and curved along a rotation path, and an arm portion which extends forward from the main body and has the thread hole formed therein, and wherein the spreader drive mechanism includes a slider which moves toward and away from the pivot shaft by a reciprocating motion transmitted from the reciprocating motion conversion mechanism via the link mechanism, and a cam follower which is provided on the slider and which rotates the spreader by sliding along the cam groove of the spreader as the slider moves.