| 摘要 |
PURPOSE: A sewing machine by ultrasonic wave is provided to expression various patterns without a separate component change. CONSTITUTION: A sewing machine by ultrasonic wave comprises: a lower body with a hollow part(21) inside and a plate part(22) at the upper side, which has a through-hole(23) connected to the hollow part; a machine main body having a sewing needle(40); a pattern conversion unit which controls the sewing needle and variously changes patterns on a joining portion of a fabric; an oscillator(51) which is formed at the hollow part(21) and generates electric energy; an ultrasonic wave transducer(52) which converts the electric energy into vibrational energy; a ultrasonic wave module(50) with a horn(54) which is vibrated by the vibrational energy; and a control unit(60). |
