Patent ID: 7847466

Claim:
A laminated core formed with a plurality of continuous segment core sheets wound and laminated in a spiral form while connecting portions mutually connecting the adjacent segment core sheets are bent and side edges of the adjacent segment core sheets are fitted with each other, the connecting portions being located in an outer peripheral portion of the laminated core, the laminated core comprising: a concave cutout provided at a radially outward side of the connecting portion, the concave cutout allowing a radial bulge to be accommodated within an outer circle of the laminated core, the radial bulge formed at a radially outward side of the connecting portion by bending the connecting portion; and an inward cutout provided at a radially inward side of the connecting portion, the inward cutout defining a bending position of the connecting portion, wherein the connecting portion has a narrow radial width and, before being bent, has a radial width in the range of 0.5 to 5 times a thickness of the segment core sheet.