FITTING METHOD FOR REINFORCING PLATE IN CORNER PART OF BAG

PURPOSE:To obtain the method for attaching a reinforcing plate to the corner part of a bag for the purpose of attaching easily and tastefully the reinforcing plate to the corner part of the bag which is curved and bulged. CONSTITUTION:In this method, a cylindrical sewing machine is inserted into the inside surface of a curved and bulged corner part 14 of the body part 13, an elliptical reinforcing plate 15 is allowed to abut on the outside surface of the corner part 14, and while turning the corner part 14 of the body part 13 along the cylindrical shape, first of all, a first side edge 15a of the elliptical reinforcing plate 15 is sewn and attached to the outside edge 14a of the corner part 14, and thereafter, a second side edge 15b is sewn and attached to the center side outside surface 14b of the corner part 14, and the elliptical reinforcing plate 15 is attached to the outside surface of the corner part 14.