Readily attachable and detachable sole plate for a sewing machine

A presser device for a sewing machine having a presser bar thereon, said presser device comprising a shank which detachably connects with the presser bar and has both a notch in the rear edge thereof and a slot at the bottom end;

• a sole plate including a toe end portion, a heel end portion, a work engaging portion therebetween, and a hinge pin mounted on the work engaging portion;
• a latching spring of resilient wire for attaching the sole plate to said shank, the spring including spaced apart side portions, a cross piece at one end interconnecting the spaced apart side portions, and aligned fingers at the opposite end substantially parallel to the cross piece, the fingers being pivotally connected to the sole plate, said side portions of the spring including a bend which forms knees engageably by the rear end portion of the sole plate for causing the cross piece to be snapped into said notch at the rear edge of the shank while the hinge pin on the sole plate is held up in the slot in the bottom of the shank, and the sole plate to be thereby attached to the shank, the hinge pin being movable out of said slot by pivotal movement of the sole plate on the knees whereupon the cross piece of the spring may be removed from the notch in the shank and the sole plate detached therefrom.