| 摘要 |
A loading mechanism (11) has first and second arm members (30, 30) rotated about first and second supporting points (31, 31), a cam mechanism (60) for rotating, by driving force from a drive source (71), at least either of the first and second arm members (30, 30) to hold and feed a disc (12), and a third arm member (80) independently rotated about a third supporting point (81), applying urging force to the disc (12) by an urging means (86) to hold the outer circumferential edge of the disc (12). In the holding and feeding of the disc, the center part of the disc (12) is present inside a figure obtained by connecting adjacent points out of three or more points of contact between the disc (12) and the first to third arm members (30, 30, 80).
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