Patent ID: 6604396
Filing Date: 2003-08-12
Classification: B21F,F28D,F28F,Y10T

Abstract:
A method of bending wire condenser elements around a bending roller to form scroll wire condensers, each wire condenser element being formed by bending a small-diameter metal tube in a plurality of parallel segments and connecting metal wires across the segments of the metal tube, each scroll wire condenser being individually usable and formed from a respective wire condenser element, said bending method comprising the steps of:holding inner edge parts of two or more wire condenser elements respectively by holding devices arranged at equal angular intervals on an outer circumference of the bending roller; winding the two or more wire condenser elements around the bending roller by pressing the wire condenser elements against the bending roller with pressure rollers while the bending roller is rotated so that respective layers of the wire condenser elements are superposed sequentially to form two or more scroll wire condensers, in which each wire condenser element serves as a separator for separating layers of the adjacent other wire condenser element or elements; removing the scroll wire condensers, formed by scrolling the two or more wire condenser elements, from the bending roller; and separating the two or more scroll wire condensers into individual scroll wire condensers.