| 摘要 |
A holder mechanism, comprising a holder frame holding a held body, a fixed reference member installed on the holder frame and allowing the held body to press thereagainst, a movable reference member movable relative to the holder frame according to the size of the held body and allowing the held body to press thereagainst, a pressing member installed, by at least one, on the holder frame in lateral and vertical directions and pressing the held body against the fixed reference member or the movable reference member, and a drive part driving the movable reference member.
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