| 摘要 |
PROBLEM TO BE SOLVED: To provide a commutator and a manufacturing method therefor for supporting respective segments, using a simple structure. SOLUTION: This commutator 50 has eight segments formed at equal angular intervals and a stationary part 61 fixing the respective segments. The respective segments are isolated electrically from each other by a radial groove 71. Each segment has a contact member 51 and a terminal member 56. The contact member 51 is formed of carbon. The side of the contact member 51 opposed to the terminal member 56 is formed in a stepped shape, to form a first step 52, and a second step 53 from the center thereof. The terminal member 56 forms a through-hole 58 whiches pass through in the board thickness direction. The stationary part 61 formed of thermosetting resin is filled in the through-hole 58 and a clearance 200 formed between the contact member 51 and the terminal member 56, and covers an inner peripheral side surface 54 and an outer peripheral side surface 55.
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