Patent ID: 8844453
Filing Date: 2014-09-30
Classification: D05B,D05C

Abstract:
1. A sewing machine comprising: a vertically-driven needle bar; a sewing needle mounted to a lower end portion of the needle bar; a rotary member provided coaxially with the needle bar and freely rotatable about an axis of the needle bar; a guide mounted to the rotary member for guiding a sewing material to a needle drop position of the sewing needle; a motor for controlling rotation of the rotary member, in accordance with a moving direction of a sewing workpiece based on embroidery data, to thereby change an orientation of the guide in such a manner as to optimize a direction in which the sewing material is to be guided to the needle drop position; and a retention mechanism for retaining an end portion of the sewing material, having been guided by said guide, at a position opposed to said guide with the sewing needle interposed between the retention mechanism and the guide, said retention mechanism comprising a pair of sandwiching members for sandwiching the end portion of the sewing material, said retention mechanism being capable of pivoting between an evacuation position at which the pair of sandwiching members is remote from the sewing needle and a retaining position at which the pair of sandwiching members is close to the sewing needle, said pair of sandwiching members being configured to sandwich the end portion of the sewing material at the retaining position, wherein sewing of the sewing material onto the sewing workpiece is started with the end portion of the sewing material retained by said retention mechanism with the pair of sandwiching members at the retaining position, and then, retention, by said retention mechanism, of the end portion of the sewing material is canceled.