| 摘要 |
A seat reclining device includes a spiral spring made of a wire and formed in a spiral shape having a first engaged portion and a second engaged portion, a first engaging member engaging the first engaged portion, and a second engaging member engaging the second engaged portion, wherein one/each of the first engaging member and the second engaging member includes an extending direction supporting member supporting the first engaged portion and/or the second engaged portion, from the opposite end side of the wire in an extending direction thereof, a first supporting member supporting the first engaged portion and/or the second engaged portion from outside of the wire, and a second supporting member supporting the first engaged portion and/or the second engaged portion from inside of the wire in a normal direction thereof.
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