| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lid rotating mechanism capable of setting a positional relationship between a lid and a lever to be rough to a certain extent. SOLUTION: A cam section 18 is formed in the rotary shaft 14 of a lid 12, and a lever 24 is arranged for rotating the lid 12 in sliding contact with the cam section 18. Before an MD 10 is ejected from an inserting port 22, the lever 24 is brought into sliding contact with the cam section 18, the lid 12 is rotated in this sliding contact state, and the inserting port 22 is opened. Since an error between the lid 12 and the lever 24 at the time of assembling is absorbed by the shape of the cam section 18 to eliminate the conventional necessity of accurate positioning, assembling accuracy for the lid 12 and the lever 24 is set somewhat rough, and assembling is speeded up and facilitated. Also, by the shape of the cam section 18, even when the lid 12 and the lever 24 are in a positional relationship which is rough to a certain extent, by bringing the lever 24 into contact with a part of the cam section 18, the lid 12 is sufficiently rotated and the inserting port 22 is sufficiently opened.</p> |
