| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of part items and facilitate space adjustment between a stator and an armature by providing a rugged part of specified length at the fixing side outer diameter of a fixing bolt, and pressing this rugged part into a hole of the stator for fastening. SOLUTION: A fixing bolt 28 is provided with a rugged part 28a of specified length at the periphery of an end part by knurling or the like and fastened to a stator 22 being pressed in from the opposite side to the arranged side of an armature 24. The armature 24 is then inserted, and a rotating plate 11 and a hub 12 are arranged. A brake disc 27 is fixed to the other end part of the fixing bolt by a nut 29, with a specified space to the stator 22 to assemble an electromagnetic braking device. Since the fixing bolt 28 is thus constituted to have functions of serving as a slide guide of the armature 24 and fixing the brake disc 27, the number of part items for the device is reduced, and the fixed position of the brake disc 27 with respect to wear of a lining layer 11a can be easily adjusted by the nut 29. |
