| 摘要 |
In a disc apparatus, such as an optical disc video camera, etc., for recording or reproducing information onto/from a disc medium received in a cartridge, for obtaining reduction in a number of parts building up a mechanism for holding a clamper, thereby achieving a cartridge holder mechanism of a thinner type, wherein a clamper for holding the disc medium while pressing thereon is engaged with a clamp holder (a reinforcing plate) which opens/closes with a disc cover (an outer cover) of an exterior of the apparatus in the structure thereof. With this, With this, the disc slider becomes unnecessary, which was disposed for moving the clamper being held therewith. Also, although a relative positional shift occurs between the clamper and the cartridge holder during rotation of the cartridge holder since the rotation shaft of the clamper differs from the rotation shaft of the cartridge holder, however a guide portion is formed on the cartridge holder as a unit, thereby in the structure thereof, regulating it with this, when the clamper comes close to the cartridge holder.
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