| 摘要 |
PROBLEM TO BE SOLVED: To provide a pulley fixing nut lid structure of a rotary electric machine for vehicle such that a cap can be fixed without reference to the length of a bold exposed from a nut, and the cap is prevented from falling during use.SOLUTION: An AC power generator 1 for vehicle includes a nut 36 which is used to fix a pully 8 driven through a belt to rotate and has a step part 362 forming a part of an outer peripheral surface of a polygon and projecting to an outer diameter side at a shifting position on a seating face side, and a claw part 94 which has polygon inner peripheral surfaces as many as an integral multiple of the number of sides of outer peripheral surfaces of the nut 36, and also has an inner diameter less than the outer diameter of the step part 362, and a cap 9 which covers the nut 36 and a bolt end 33a projecting from the nut 36, and is molded out of a resin in one body. |
