Patent ID: 8251001

Claim:
A circular stitcher for a sewing machine that includes a sewing machine bed, a needle plate, and a feed dog, the circular stitcher having a needle configured to pierce a workpiece cloth at a laterally spaced position from a sewing needle drop point to form circular stitches on the workpiece cloth by rotating the workpiece cloth about the needle by the feed dog, the circular stitcher comprising: a main base attachable to an upper surface of the sewing machine bed or to an upper surface of the needle plate; a movable base provided at the main base so as to be movable in a predetermined direction with respect to the main base; a pin including the needle configured to pierce the workpiece cloth and having an engagement portion, and a holder configured to hold a base end of the needle; a lock element that is provided at the movable base and is configured to lock and unlock the engagement portion of the needle; and an operation element that is provided at the movable base and that is configured to allow a finger operation to move the movable base in the predetermined direction by a user.