| 摘要 |
PROBLEM TO BE SOLVED: To obtain a commutator device where the electrical connection reliability between the hook of a commutator piece and a conductor is improved. SOLUTION: The commutator 20 is provided with a step 24 for assisting the contact bonding of conductors 6 and 9 locked to a hook 23 at the root at one side of a rectification piece 22.
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