Patent ID: 6997124

Claim:
A device for generating a loop or file in an embroidery frame comprising; a fore-back driving part comprising a fore-back driving motor, a first gear driven by said motor, a second gear driven by a means coupling with said first gear, a third gear arranged in a co-axis of rotation with said second gear and moving together, a worm gear connected to said third gear and converting a rotational force to a force to move forward and backward, a first stop bar attached at a lower part of the co-axis to switch a motor and cam-shaped stoppers placed within the area covered by the rotation of said first stop bar; a left-right driving part comprising a left-right rotating motor, a fourth gear driven with said rotating motor, and a shaft having a fifth gear at one end thereof and said worm gear at the other end; and a lead arm part connected to said shaft, and comprising a lead arm to generate a loop, a lead arm body joining said lead arm, a second stop bar to suppress the rotation of said motor, and a pair of lever stoppers placed within the area covered by the rotation of said lead arm wherein each of said lever stoppers is formed at the left and right against each other.