inputted to the cpu 51 the rotations of the motor 15 are interrupted to stop the needle 14 at the bottom dead center then the program proceeds to a subsequent step s5 at this step s5 it is judged whether or not the needle up stop signal has been inputted if the needle up stop signal is inputted to the cpu 51 on the basis of the depression of the front portion 28b of the aforementioned control pedal 28 the motor 15 is slightly rotated to cut the thread followed by the movement of the needle 14 toward the top dead center at a subsequent step s6 the needle up stop is awaited if it is confirmed that the needle 14 is stopped at the top dead center the program proceeds to a subsequent step s7 at which the servo solenoid 18 is turned on so that the presser foot 4 is raised to the uppermost position to release the pressure imposed on the work fabric as a result it is possible to facilitate take out of the work fabric in the state in which the presser foot 4 is arranged in the uppermost position at a subsequent step s8 it is judged whether or not the predetermined.