| 摘要 |
A restriction plate ( 21 ) is provided on a lower surface of a near side of an upper plate of a chassis base ( 101 ). Both disk (D 1 ) and disk (D 2 ), while keeping in contact with a contact guide portion P 1 of the restriction plate ( 21 ), are inserted. A stopper portion (P 2 ) is formed at a farther side position than the contact guide portion (P 1 ). A peripheral surface of a transfer roller ( 5 ) is placed in a moving direction of the disks (D 1 ), (D 2 ) proceeding while contacting upper surfaces of disk guides ( 2 R), ( 2 L) of a disk loading slit ( 20 ), and the contact guide portion (P 1 ). Further, the stopper portion (P 2 ) exists at a position corresponding to a direction of a tangent line which passes through the contact guide portion (P 1 ), out of the tangent lines of the aforementioned peripheral surface, at positions other than the moving direction of the disks (D 1 ), (D 2 ).
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