Rotor for electric rotating machine and method for manufacturing the same

A method for manufacturing a rotor for an electric rotating machine comprising processes of:

• forming a core body member by stacking a plurality of core plates one on top the other in an axial direction along a rotational axis;
• forming an intermediate member by press forming a plate member from a first direction for forming a second through-hole for allowing an insertion of a fastening pin and forming at least one of end portions including a rounded surface portion;
• forming at least one of a pair of end plates, the end plate including a contact portion provided with a first surface configured to thrust the core body member and including a connecting portion extending toward the rotational axis from the contact portion and provided with a first through-hole for allowing an insertion of a connecting member, formed by forming the first through-hole by press forming the intermediate member from a second direction different from the first direction, the second direction which is the direction from the first surface provided on the reverse side of a second surface, the second surface continuous with the rounded surface portion;
• connecting the core body member and the end plates by riveting the fastening pin inserted through the second through-hole extending through each of the end plates and through the core body member in a state where the first surface thrusts a corresponding end surface of the core body member;
• and
• connecting the core body member, the end plates and the output member by inserting the connecting member through the first through-hole in a state where the output member is in contact with the first surface of the connecting portion and by tightening the connecting member thereat.