Patent ID: 8128370

Claim:
A blade structure for a torque converter, produced according to a process comprising: (a) stamping a flat sheet into a shape including: a holding section; an inner connecting section located around the holding section, and held by the holding section; an outer connecting section located around the inner connecting section; and a plurality of blades connected between the inner connecting section and the outer connecting section; (b) bending the blades into a curved shape between the inner connecting section and the outer connecting section; (c) angling the blades by a predetermined angle with respect to the inner connecting section and the outer connecting section; (d) displacing the holding section with respect to the inner connecting section perpendicularly of the sheet so as to shrink the sheet toward the holding section and shrink spaces between the blades; and (e) removing the displaced holding section from the sheet, wherein: the outer connecting section includes: a plurality of first bridging portions connected to respective ones of the blades; a plurality of base portions connected to respective ones of the first bridging portions; and a plurality of first adjusting portions connected between respective two adjacent ones of the base portions; and each of the first adjusting portions is arranged to adjust a distance between respective two adjacent ones of the first bridging portions when the holding section is displaced with respect to the inner connecting section perpendicularly of the sheet.