Shutter opening/closing apparatus and information reproducing apparatus

A shutter opening/closing apparatus comprising:

• a follower member configured to be engaged, through an opening of a cartridge, with a recessed portion of a wheel for opening or closing a shutter of the cartridge;
• and
• a cam mechanism for controlling a movement of the follower member so as to avoid contact of the follower member to a body of the cartridge at a time when the engagement between the follower member and the recessed portion is released.

A shutter opening/closing apparatus comprising:

• a follower member configured to be engaged, through an opening of a cartridge, with a recessed portion of a wheel for opening or closing a shutter of the cartridge;
• and
• a cam mechanism for limiting a movement of the follower member at a time when the cartridge is loaded and disposed between the follower member and the cartridge at a position at which the follower member does not engage with the recessed portion of the wheel.

An information reproducing apparatus comprising:

• a shutter opening/closing apparatus including a follower member configured to be engaged, through an opening of a cartridge, with a recessed portion of a wheel for opening or closing a shutter of the cartridge, and a cam mechanism for controlling a movement of the follower member so as to avoid contact of the follower member to a body of the cartridge at a time when the engagement between the follower member and the recessed portion is released;
• and
• reproducing means for reproducing an information of a recording medium accommodated in the cartridge.