Patent ID: 6145457
Filing Date: 2000-11-14
Classification: D05B

Abstract:
A sewing machine, comprising:a needle bar having a lower end to which a needle with an eye is attached;a needle bar up/down moving mechanism that moves a needle bar up and down;a needle bar oscillating mechanism that oscillates the needle bar in a lateral direction perpendicular to a feeding direction of a work cloth;a needle bar interrupting mechanism that interrupts the needle bar up/down moving mechanism from moving the needle bar up and down;a needle thread supply source that supplies a needle thread;a thread tension adjusting mechanism that adjusts a tension of the needle thread in a path extending from the needle thread supplying source to the eye of the needle;a tension releasing mechanism that allows the thread tension adjusting mechanism to release the tension of the needle thread;an actuator that gives a driving force; anda driving mechanism that transmits the driving force of the actuator to the needle bar oscillating mechanism, the needle bar interrupting mechanism, and the tension releasing mechanism.